Posted August 10, 2019 30 minutes ago, VegetableStu said: hmm interesting. I just need a tethered line to a larger USB battery, LOL ,_, or if anyone knows where i can get a AA usb adapter (that has the right voltage step-down)... I'm sure some kind of dummy-cell thing already exists for such a purpose: https://www.amazon.com/convert-battery-pack-electric-power/dp/b007aokmne Though I'd be a bit wary of this kind of strategy since USB is 5v but low amperage normally, so if you plug it into something that doesn't do the right amperage needed for the device, you'll probably melt the cable or the charger will catch fire. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 10, 2019 Sounds too expensive. Specs: Motherboard: Asus X470-PLUS TUF gaming (Yes I know it's poor but I wasn't informed) RAM: Corsair VENGEANCE® LPX DDR4 3200Mhz CL16-18-18-36 2x8GB CPU: Ryzen 9 5900X Case: Antec P8 PSU: Corsair RM850x Cooler: Antec K240 with two Noctura Industrial PPC 3000 PWM Drives: Samsung 970 EVO plus 250GB, Micron 1100 2TB, Seagate ST4000DM000/1F2168 GPU: EVGA RTX 2080 ti Black edition Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 10, 2019 23 hours ago, Skanky Sylveon said: I found some li-ion batteries, but no lipo batteries. Also, the only 2000 mah that I found was NiMH. Although it does seem like there are lithium ion batteries on Amazon that offer similar functionality for slightly cheaper. NiMH batteries don't need overcharge, and over discharge protection circuits, the USB ports also cost money, as well as the LEDs. Lithium is generally at 3.7v, so I would imagine that there is some switching circuitry involved in these batteries. I agree, although I can see it being useful for travel folks and whatnot. searching LiPo USB AA batteries brings up plenty of results with the exact same physical specs and dimensions as this fake kickstarter. By defending them as if they're legitimately designing something and not just rebadging chinese garbage does the forum a disservice. "NiMH batteries don't need overcharge, and over discharge protection circuits, the USB ports also cost money, as well as the LEDs." - so what if the end result is no better than the NIMH battery? Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 10, 2019 23 hours ago, Skanky Sylveon said: https://www.digitaltrends.com/cool-tech/pale-blue-rechargeable-smart-batteries/?amp While the article talks about them lasting more than lithium ion batteries, the kickstarter makes no mention of that on their kickstarter. The success doesn't surprise me, rechargeable lithium AA and AAA batteries are something that people have wanted for a while. While there are non rechargeable lithium Energizer batteries, non rechargeable batteries are both wasteful both money wise and environmentally wise. That's actually pretty neat, but I can see recharging multiple batteries at once being a bit of a mess. This also brings up the question on whether or not these batteries are compatible with devices that can charge regular nickel metal hydride by just plugging them in. Let's also keep in mind that this is a kickstarter project, and a lot has gone wrong with kickstarter projects in the past. But I will remain cautiously optimistic. For a while there were usb AA batteries for sale. You took off the cap and a usb was underneath. Sadly I think they got taken off the market. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 10, 2019 Author 3 minutes ago, TechyBen said: For a while there were usb AA batteries for sale. You took off the cap and a usb was underneath. Sadly I think they got taken off the market. You can still find them. https://www.amazon.com/gp/aw/d/B01MFI0KIB/ref=ox_sc_act_image_1?smid=A9QIOY9HGDU88&psc=1 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 10, 2019 3 minutes ago, Skanky Sylveon said: You can still find them. https://www.amazon.com/gp/aw/d/B01MFI0KIB/ref=ox_sc_act_image_1?smid=A9QIOY9HGDU88&psc=1 Oh, they also have the exact same model for that fake kickstarter: Learn more: https://www.amazon.co.uk/dp/B07RTKNK89/ref=cm_sw_em_r_mt_dp_U_pI0tDbYJ8SMP2 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 10, 2019 Author 15 minutes ago, TechyBen said: Oh, they also have the exact same model for that fake kickstarter: Learn more: https://www.amazon.co.uk/dp/B07RTKNK89/ref=cm_sw_em_r_mt_dp_U_pI0tDbYJ8SMP2 If you want to try to mock me, at least get the battery chemistry right. Here, I'll help you out. https://www.amazon.com/Rechargeable-Batteries-Quick-Charge-Micro-USB-Charging/dp/B07J9PQ1CN/ref=sxbs_sxwds-stvp?keywords=lithium+aa+batteries&pd_rd_i=B07J9PQ1CN&pd_rd_r=162a9f3e-d251-41d4-9c5d-1515e7c86c5f&pd_rd_w=lF56Z&pd_rd_wg=Jw3Qu&pf_rd_p=d006b618-5fac-44e6-850d-a0fdd19f7847&pf_rd_r=PTA9JZVQMM2Y01JXVMBK&qid=1565477475&s=gateway&sprefix=lithium+ Li-ion instead of lipo, but at least it's lithium. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 10, 2019 -Cleaned- Community Standards || Tech News Posting Guidelines ---======================================================================--- CPU: R5 3600 || GPU: RTX 3070|| Memory: 32GB @ 3200 || Cooler: Scythe Big Shuriken || PSU: 650W EVGA GM || Case: NR200P Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 11, 2019 Since I haven’t seen these linked yet. They also have 9 volt and other battery sizes in the brand/line. https://hobbyking.com/en_us/4pc-set-znt5-1-b-znter-1-5v-1250mah-usb-rechargeable-aa-li-po-battery-capacity-type.html?affiliate_code=VBAHEFGAOTVFUDB&_asc=2408424615 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 11, 2019 10 hours ago, Skanky Sylveon said: Spoiler If you want to try to mock me, at least get the battery chemistry right. Here, I'll help you out. https://www.amazon.com/Rechargeable-Batteries-Quick-Charge-Micro-USB-Charging/dp/B07J9PQ1CN/ref=sxbs_sxwds-stvp?keywords=lithium+aa+batteries&pd_rd_i=B07J9PQ1CN&pd_rd_r=162a9f3e-d251-41d4-9c5d-1515e7c86c5f&pd_rd_w=lF56Z&pd_rd_wg=Jw3Qu&pf_rd_p=d006b618-5fac-44e6-850d-a0fdd19f7847&pf_rd_r=PTA9JZVQMM2Y01JXVMBK&qid=1565477475&s=gateway&sprefix=lithium+ Li-ion instead of lipo, but at least it's lithium. They do other types. I just could not be bothered that second to check all of them. Did eventually find what look to be exact "replicas" of the Kickstarter. I wonder how a Chinese company managed to invent timetravel and take that Kickstarter tech back to our time. As Justpoet posted. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 14, 2019 I can't help but think that if the large players haven't made these, there's likely a good reason. That charging method is a pretty glaring one. Not to mention how many things really use AA and AAA batteries anymore? CPU: Ryzen 9 5900 Cooler: EVGA CLC280 Motherboard: Gigabyte B550i Pro AX RAM: Kingston Hyper X 32GB 3200mhz Storage: WD 750 SE 500GB, WD 730 SE 1TB GPU: EVGA RTX 3070 Ti PSU: Corsair SF750 Case: Streacom DA2 Monitor: LG 27GL83B Mouse: Razer Basilisk V2 Keyboard: G.Skill KM780 Cherry MX Red Speakers: Mackie CR5BT MiniPC - Sold for $100 Profit Spoiler CPU: Intel i3 4160 Cooler: Integrated Motherboard: Integrated RAM: G.Skill RipJaws 16GB DDR3 Storage: Transcend MSA370 128GB GPU: Intel 4400 Graphics PSU: Integrated Case: Shuttle XPC Slim Monitor: LG 29WK500 Mouse: G.Skill MX780 Keyboard: G.Skill KM780 Cherry MX Red Budget Rig 1 - Sold For $750 Profit Spoiler CPU: Intel i5 7600k Cooler: CryOrig H7 Motherboard: MSI Z270 M5 RAM: Crucial LPX 16GB DDR4 Storage: Intel S3510 800GB GPU: Nvidia GTX 980 PSU: Corsair CX650M Case: EVGA DG73 Monitor: LG 29WK500 Mouse: G.Skill MX780 Keyboard: G.Skill KM780 Cherry MX Red OG Gaming Rig - Gone Spoiler CPU: Intel i5 4690k Cooler: Corsair H100i V2 Motherboard: MSI Z97i AC ITX RAM: Crucial Ballistix 16GB DDR3 Storage: Kingston Fury 240GB GPU: Asus Strix GTX 970 PSU: Thermaltake TR2 Case: Phanteks Enthoo Evolv ITX Monitor: Dell P2214H x2 Mouse: Logitech MX Master Keyboard: G.Skill KM780 Cherry MX Red Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 14, 2019 25 minutes ago, dizmo said: Not to mention how many things really use AA and AAA batteries anymore? "Massaging" devices. Our Grace. The Feathered One. He shows us the way. His bob is majestic and shows us the path. Follow unto his guidance and His example. He knows the one true path. Our Saviour. Our Grace. Our Father Birb has taught us with His humble heart and gentle wing the way of the bob. Let us show Him our reverence and follow in His example. The True Path of the Feathered One. ~ Dimboble-dubabob III Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 14, 2019 28 minutes ago, dizmo said: ...Not to mention how many things really use AA and AAA batteries anymore? Quite a few things. For me, it's mostly flashlights. A small 2 AA cell Energizer LED flashlight puts out far more light than the old multi D cell Maglights did and last longer. I have four of the Energizers (made from machined billet aluminum): one in my desk, one by my bed, one in my truck, and one in my purse. I also have a few of the El Cheapo Chinese flashlights that use three AAA in a cartridge as backups but, as they eventually die, I dump them rather than replace them. I have analog wall clocks that use a single AA. My travel alarm uses a single AA. I have a Sanyo keyboard that uses six AAAs. My good point and shoot camera and its flash unit use four AAs each. My small point and shoot purse camera uses a couple of AAs. My home's two thermostats use two AAs each. I have a small inspection camera that use four AAs. I haven't bought a AA or AAA in years. I have a stable of Eneloop NiMH rechargables in each size. When a batttery goes dead, I pop in a fresh one and recharge the dead one later at my convenience. I always have spare batteries on hand. I keep them in little plastic cases that hold four each. They easily fit in a pocket, my purse, and the bag I keep my LaCrosse four cell battery chargers in. These batteries hold their charge for at least a year in storage. They are durable. I have many that are around a decade or more old and I have yet to have one completely die on me. These batteries and my two chargers still meet my needs and, as long as they continue to do so, I see no point in buying into newer technology. At my age, I will probably die before my AAs and AAAs do. Jeannie As long as anyone is oppressed, no one will be safe and free. One has to be proactive, not reactive, to ensure the safety of one's data so backup your data! And RAID is NOT a backup! Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 14, 2019 29 minutes ago, Lady Fitzgerald said: Quite a few things. For me, it's mostly flashlights. A small 2 AA cell Energizer LED flashlight puts out far more light than the old multi D cell Maglights did and last longer. I have four of the Energizers (made from machined billet aluminum): one in my desk, one by my bed, one in my truck, and one in my purse. I also have a few of the El Cheapo Chinese flashlights that use three AAA in a cartridge as backups but, as they eventually die, I dump them rather than replace them. I have analog wall clocks that use a single AA. My travel alarm uses a single AA. I have a Sanyo keyboard that uses six AAAs. My good point and shoot camera and its flash unit use four AAs each. My small point and shoot purse camera uses a couple of AAs. My home's two thermostats use two AAs each. I have a small inspection camera that use four AAs. I haven't bought a AA or AAA in years. I have a stable of Eneloop NiMH rechargables in each size. When a batttery goes dead, I pop in a fresh one and recharge the dead one later at my convenience. I always have spare batteries on hand. I keep them in little plastic cases that hold four each. They easily fit in a pocket, my purse, and the bag I keep my LaCrosse four cell battery chargers in. These batteries hold their charge for at least a year in storage. They are durable. I have many that are around a decade or more old and I have yet to have one completely die on me. These batteries and my two chargers still meet my needs and, as long as they continue to do so, I see no point in buying into newer technology. At my age, I will probably die before my AAs and AAAs do. This is going to come across as rather rude...but you're on the more mature side, yes? I say this because I haven't seen travel alarms sell well in almost a decade, most cameras use proprietary battery packs (at least the higher end ones, though my Samsung flash also used AA's, which was a PITA...I won't touch on the fact that you use point and shoot cameras ;)), the flashlights are valid...though a lot of people would just use the flashlight on their phone. I think for most people, batteries aren't as necessary as they have been in quite a while. CPU: Ryzen 9 5900 Cooler: EVGA CLC280 Motherboard: Gigabyte B550i Pro AX RAM: Kingston Hyper X 32GB 3200mhz Storage: WD 750 SE 500GB, WD 730 SE 1TB GPU: EVGA RTX 3070 Ti PSU: Corsair SF750 Case: Streacom DA2 Monitor: LG 27GL83B Mouse: Razer Basilisk V2 Keyboard: G.Skill KM780 Cherry MX Red Speakers: Mackie CR5BT MiniPC - Sold for $100 Profit Spoiler CPU: Intel i3 4160 Cooler: Integrated Motherboard: Integrated RAM: G.Skill RipJaws 16GB DDR3 Storage: Transcend MSA370 128GB GPU: Intel 4400 Graphics PSU: Integrated Case: Shuttle XPC Slim Monitor: LG 29WK500 Mouse: G.Skill MX780 Keyboard: G.Skill KM780 Cherry MX Red Budget Rig 1 - Sold For $750 Profit Spoiler CPU: Intel i5 7600k Cooler: CryOrig H7 Motherboard: MSI Z270 M5 RAM: Crucial LPX 16GB DDR4 Storage: Intel S3510 800GB GPU: Nvidia GTX 980 PSU: Corsair CX650M Case: EVGA DG73 Monitor: LG 29WK500 Mouse: G.Skill MX780 Keyboard: G.Skill KM780 Cherry MX Red OG Gaming Rig - Gone Spoiler CPU: Intel i5 4690k Cooler: Corsair H100i V2 Motherboard: MSI Z97i AC ITX RAM: Crucial Ballistix 16GB DDR3 Storage: Kingston Fury 240GB GPU: Asus Strix GTX 970 PSU: Thermaltake TR2 Case: Phanteks Enthoo Evolv ITX Monitor: Dell P2214H x2 Mouse: Logitech MX Master Keyboard: G.Skill KM780 Cherry MX Red Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 14, 2019 1 hour ago, dizmo said: Not to mention how many things really use AA and AAA batteries anymore? XB360 and XBOne controllers. Wireless mice. Wireless keyboards. TV Remotes. Come Bloody Angel Break off your chains And look what I've found in the dirt. Pale battered body Seems she was struggling Something is wrong with this world. Fierce Bloody Angel The blood is on your hands Why did you come to this world? Everybody turns to dust. Everybody turns to dust. The blood is on your hands. The blood is on your hands! Pyo. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 15, 2019 1 hour ago, dizmo said: This is going to come across as rather rude...but you're on the more mature side, yes? I say this because I haven't seen travel alarms sell well in almost a decade, most cameras use proprietary battery packs (at least the higher end ones, though my Samsung flash also used AA's, which was a PITA...I won't touch on the fact that you use point and shoot cameras ;)), the flashlights are valid...though a lot of people would just use the flashlight on their phone. I think for most people, batteries aren't as necessary as they have been in quite a while. No worries; I didn't take it as rude. The fact is I am a flatulent geriatric and "more mature side" was a gentle way to put it. I have no fear of new technology and will happily embrace it when it benefits me. However, not all new technology will benefit me. In fact, at times, it is a detriment. In this case, being able to use the same batteries is a huge convenience which eliminates a lot of extra devices. Having to have proprietary batteries means having spare batteries for each type, which means I have to have and keep track of more batteries. It also means I have to have keep up with more different kinds of chargers. There is no advantage in that. I also do not like new technology being rammed down my throat. Whether to adopt it or not should be MY decision. As far as the point and shoots go, I'm not a photographer by any stretch of the imagination. The camera in my dumb as rocks cell phone (which rarely gets turned on and only costs me $5 a month to use) is fine for emergency use (such as recording damage in an accident; I don't have a smart phone because the advantages don't come close to outweighing the accidents). Point and shoots work well for me most of the time when I actually use them. The big one, a Canon SX10 IS is a high end point and shoot. I've had it for a long time, it works well, and just can't justify replacing it with something that not only will not benefit me (let alone take better pictures), it will require that I have proprietary batteries and chargers (especially since I already have plenty of AAs), external lenses, etc. The small one is a Canon SX150 IS. While not as nice as the SX10, it's far more convenient and still takes better pictures than most phones. I also don't need to worry about someone stealing them. I have one travel alarm. It's dependable and works just fine to wake me up when I'm on the road. Keep in mind this is a technology forum and the needs of people here will not be representative of most people. Btw, I forgot about wireless mice (I have a small herd of those), door locks, the four cordless phones in my house (way more convenient than keeping track of my cell phone and having to charge it everyday), "egg" timer, home alarm clock, and TV remotes. Jeannie As long as anyone is oppressed, no one will be safe and free. One has to be proactive, not reactive, to ensure the safety of one's data so backup your data! And RAID is NOT a backup! Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 15, 2019 3 hours ago, dizmo said: I can't help but think that if the large players haven't made these, there's likely a good reason. That charging method is a pretty glaring one. Not to mention how many things really use AA and AAA batteries anymore? Idk about the last part but for sure, you would expect this from the big companies if they could do it well, and if they can't, then who else is going to Solve your own audio issues | First Steps with RPi 3 | Humidity & Condensation | Sleep & Hibernation | Overclocking RAM | Making Backups | Displays | 4K / 8K / 16K / etc. | Do I need 80+ Platinum? If you can read this you're using the wrong theme. You can change it at the bottom. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 15, 2019 The reality is that big name battery companies wouldn't want to make something like this. The energy density and longevity of LiPo puts existing batteries, even non-rechargables, to shame. They want to keep selling those for the few devices that haven't just built in the LiPo on their own. Even smoke detectors often have "lifetime" LiPo batteries in them now (designed to last until the detection unit is supposed to be replaced). Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 15, 2019 8 hours ago, Drak3 said: XB360 and XBOne controllers. Wireless mice. Wireless keyboards. TV Remotes. Kinda surprised that these don't just have USB-C connectors on them now. Plug in the cable, it charges the internal battery, switches to USB low-latency input. Remove the cable, switches to battery, lasts 6 months or so. I have a smart scale that I've only charged three times since I purchased it. Meanwhile the stupid EVE kit I have ( earlier version of https://www.evehome.com/en/eve-room ) has to replace the batteries every two months with 3 AA batteries. I've had the batteries leak one of those times. What I would prefer, is that all these "smarthome" devices come up with just a 2.5cmx2.5cmx1cm LiPo battery that can be replaced, even if it has to take the screws out. Put a USB-C connector on them to charge them. If a battery can be recharged 100 times, you should never have to replace the battery at all if they only need to be charged twice a year. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 15, 2019 4 hours ago, justpoet said: The reality is that big name battery companies wouldn't want to make something like this. The energy density and longevity of LiPo puts existing batteries, even non-rechargables, to shame. They want to keep selling those for the few devices that haven't just built in the LiPo on their own. Even smoke detectors often have "lifetime" LiPo batteries in them now (designed to last until the detection unit is supposed to be replaced). Do you have a rough figure for the actual number? I'm curious if it's 50% more, 5x more, etc. Solve your own audio issues | First Steps with RPi 3 | Humidity & Condensation | Sleep & Hibernation | Overclocking RAM | Making Backups | Displays | 4K / 8K / 16K / etc. | Do I need 80+ Platinum? If you can read this you're using the wrong theme. You can change it at the bottom. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 15, 2019 7 hours ago, Drak3 said: XB360 and XBOne controllers. Wireless mice. Wireless keyboards. TV Remotes. And a lot more than that too. They're most certainly still a thing. But, it would also be wrong not to notice that, for better or worse, they are getting less common. Even one of your examples - there is a new Xbox one pro controller coming with an integrated battery. On the subject of pros and cons, I guess the pros are lighter and potentially longer runtime, but there are a lot of cons that concern me. For one, it's no longer swap and go, you have to plug it in to charge, or use the cabled version in the mean time, which isn't likely an option because if it was you probably would have just done that from the start (not to mention that it defeats the point regardless during that period). Also, it might be lighter than AAs, but it's probably heavier than no battery at all, which is an option with the current models for anyone who doesn't want or use wireless. Then there's the lifespan issues - is it replaceable in 2 or 5 years? Not just theoretically (which itself is not a given), but practically too - can I actually go buy a replacement? Solve your own audio issues | First Steps with RPi 3 | Humidity & Condensation | Sleep & Hibernation | Overclocking RAM | Making Backups | Displays | 4K / 8K / 16K / etc. | Do I need 80+ Platinum? If you can read this you're using the wrong theme. You can change it at the bottom. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 15, 2019 24 minutes ago, Ryan_Vickers said: Do you have a rough figure for the actual number? I'm curious if it's 50% more, 5x more, etc. Comparing similar cell sizes (basically C battery size)... Alkaline cells get 1 cycle, but about 8000mAh and start with a charge of 1.5v and drop mostly linearly. Old style NiCd cells generally had 2000+ cycles of usable life, but could only hold aprox 1800mAh and charge to 1.2v. High capacity NiCd cells generally get 500ish cycles of usable life, but can hold aprox 3500mAh and charge to 1.2v. NiMH cells generally get about 700 cycles of usable life with capacity starting aprox 6000mah, but dropping throughout its life after about 300 cycles and charge to 1.2v. Handles higher current loads way better than NiCd, but self discharges faster (eneloop were some of the first to mostly resolve the self discharge so it could sit for a while, but that comes at the cost of capacity…often close to 1/3 the capacity goes away to get longer charged shelf life). Modern expensive NiMH will generally have about 4000mAh, be able to sit on the shelf, and get 500ish cycles before noticeable degradation. LiPo cells generally get about 1000 cycles of usable life with a nominal charge voltage of 3.7v with aprox capacity of 4000mAh. This gives it aprox 14.8Wh vs the 4.8Wh of a good NiMH (roughly 3x capacity). To make them work in normal items (such as in our example), they have a voltage regulator on them, so basically that full charge time will act as a 100% charge fully new Alkaline. There are 3 more characteristics of LiPo based cells though, which make them vastly superior to the older tech. The first is that they tend to hold their voltage fairly steady for most of the capacity of the battery, vs mostly linearly going from full charge to 0 volts. The second is that they can output MUCH more current, so when you need a burst of power from a LiPo, you can just take it, while as when you needed that from a NiCd, you needed to put many of them in parallel. The last is that when they're being used their resistance typically goes down instead of up, so they can work more effectively where they're wired in series vs the other types as well. Unfortunately, like standard NiMH, it doesn't generally hold up to a full charge on the shelf very well…but slightly under full charge, it'll sit at virtually forever with almost no self discharge. The AA shaped LiPo I linked above is not really much different than a good Eneloop for capacity…but that's because it houses a USB port and charger electronics and voltage cutoff and regulation electronics in addition to the LiPo inside. The larger the cell (see my comparison above for a C cell size), the less those extra electronics cut into the space (and thus capacity) of the battery. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 15, 2019 4 minutes ago, justpoet said: [snip] Wow that's more info than I was expecting interesting. And the last part about the comparison, that's where I was getting at with this. If they've got 3x the capacity per volume in theory, but in practice are ending up with less capacity, that tells me the innards of these usb rechargeable LiPo AAs are less than 1/3 battery and 2/3 or more other electronics, which is really inefficient obviously. I wonder if any improvements to that could be made... Solve your own audio issues | First Steps with RPi 3 | Humidity & Condensation | Sleep & Hibernation | Overclocking RAM | Making Backups | Displays | 4K / 8K / 16K / etc. | Do I need 80+ Platinum? If you can read this you're using the wrong theme. You can change it at the bottom. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 15, 2019 I don't get why people keep funding a Kickstarter once it's fully 'funded'. Surely if that's all they need to launch the product, they'll just launch the product and you can buy it from a retailer with a guarantee that you'll actually get it. In fact, from what I've seen of other Kickstarters, you'd probably get it earlier! Laptop: Spoiler HP OMEN 15 - Intel Core i7 9750H, 16GB DDR4, 512GB NVMe SSD, Nvidia RTX 2060, 15.6" 1080p 144Hz IPS display PC: Spoiler Vacancy - Looking for applicants, please send CV Mac: Spoiler 2009 Mac Pro 8 Core - 2 x Xeon E5520, 16GB DDR3 1333 ECC, 120GB SATA SSD, AMD Radeon 7850. Soon to be upgraded to 2 x 6 Core Xeons Phones: Spoiler LG G6 - Platinum (The best colour of any phone, period) LG G7 - Moroccan Blue Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 15, 2019 As far as I know, this isn't much new. I bought these batteries half a year ago: https://www.aliexpress.com/item/32959692117.html?spm=a2g0s.9042311.0.0.27424c4dEyHp0y I used four of them heavily three weeks this summer without any issues in a Garmin gpsmap 62s and 64st. WIth heavily, I mean three weeks straight 10ish hours a day and charging every evening/night. They charge in about 1.5-3 hours, and only lasted 0-25% less long compared to expensive Duracell (or similar) batteries. An AAA version also exists. They have a small led to tell you when it's done charging. Having these batteries saved us: - weight (no need to carry many spare batteries or a large charging case that needs wall power (power bank ftw)), - time (no need to seach for batteries in shops and be dependent on shops selling batteries in the first place - and very easiy to charge, the 1 usb A to 4 micro usb cable is INCREDIBLY handy. A 1 usb A to 2 micro usb cable version is also available), - lots of money (I bought them for about $26 incl tax - I would've had to buy approximately 60 (!) AA batteries if not for these rechargable ones)! All in all, I was very happy with these batteries and would definitely recommend them. Oh, and they look so cute when all four are charging next to each other. Picture from an AliExpress review: PC SPECS: CPU: Intel Core i7 3770k @4.4GHz - Mobo: Asrock Extreme 4 (Z77) - GPU: MSI GeForce GTX 680 Twin Frozr 2GB - RAM: Crucial Ballistix 2x4GB (8GB) 1600MHz CL8 + 1x8GB - Storage: SSD: Sandisk Extreme II 120GB. HDD: Seagate Barracuda 1TB - PSU: be quiet! Pure Power L8 630W semi modular - Case: Corsair Obsidian 450D - OS: Windows 7 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
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