Chinese battery pack

[hak4fun]

I found dis on ebay, and was wondering if it is worth it:

http://www.ebay.com/itm/12000mah-Dual-USB-5V-1A-2-1A-Power-Bank-18650-Battery-Charger-DIY-Box-For-Phone-/371319771890?pt=LH_DefaultDomain_0&var=&hash=item56746212f2

 

 

It takes the cells that come from laptop batteries which I have TONS of just laying around from old laptops. 

 

Anyone have experience with anything like this? Is it going to catch on fire when I try to use it. ?

[C0LL0SS0S]

TBH batterypacks are not that expensive in Europe/US, I would not risk it, but the price is pretty dope, payed 20€ for 13000mh

[Firearm2112]

i wouldnt touch that with a 10 foot pole.

 

I picked up one of these. Its the best, cheapest 10,000 mAh chargers on the market https://oneplus.net/oneplus-power-bank

[iamdarkyoshi]

If you have experience with this stuff, go ahead. I have made a 500w/h battery pack from 18650 cells before. As long as china didnt put any of their batteries in it, it should be fine.

[hak4fun]

TBH batterypacks are not that expensive in Europe/US, I would not risk it, but the price is pretty dope, payed 20€ for 13000mh

 

i wouldnt touch that with a 10 foot pole.

 

I picked up one of these. Its the best, cheapest 10,000 mAh chargers on the market https://oneplus.net/oneplus-power-bank

Explain why though. the pricing makes sense. It is just the electronics, without the $20 of battery cells.

 

Its not about the price of a batterypack, I want use up at least some of the 5gallon bucket of 18650 cells I have in my attic, instead of just throwing them away.

[hak4fun]

If you have experience with this stuff, go ahead. I have made a 500w/h battery pack from 18650 cells before. As long as china didnt put any of their batteries in it, it should be fine.

Yea, I took a small electronics class last year, so I feel comfortable with it. Just wanted to know if there something I was missing, maybe someone had experience of one exploding in there face.

[C0LL0SS0S]

Explain why though. the pricing makes sense. It is just the electronics, without the $20 of battery cells.

 

Its not about the price of a batterypack, I want use up at least some of the 5gallon bucket of 18650 cells I have in my attic, instead of just throwing them away.

Call me a pussy but I would not reuse old Lapotop batteries for your battery pack

 

EDIT: You know what you are doing, go for it

[iamdarkyoshi]

Here you go. Here is my massive battery pack:

[hak4fun]

Here you go. Here is my massive battery pack:

IMAG0217.jpg

haha, what do you use that for?

[iamdarkyoshi]

haha, what do you use that for?

electric bike

[iamdarkyoshi]

if you can find them, thinkpad g40/g41 packs have 3 sets of four batteries and make building a pack really easy.

[.spider.]

Here you go. Here is my massive battery pack:

IMAG0217.jpg

How do you charge it?

[hak4fun]

electric bike

ah ok.

 

if you can find them, thinkpad g40/g41 packs have 3 sets of four batteries and make building a pack really easy.

Yea, I have a few toshiba batteries that have 9.

[TopWargamer]

After having experience with off brand battery packs, no, it's not worth it. I can tell you right now (again, from experience) that the batteries will be shotty, the USB ports will break, and everything will be shotty.

 

I personally have an Anker power bank now and love it. It's worth the extra money, trust me.

[TopWargamer]

if you can find them, thinkpad g40/g41 packs have 3 sets of four batteries and make building a pack really easy.

How did you go about building it? Like, what all would I need? Because I have spare batteries lying around. 

[iamdarkyoshi]

How did you go about building it? Like, what all would I need? Because I have spare batteries lying around.

Because of the tabs spanning the batteries in parallel, I just soldered some solid core copper wire as a jumper from each cell pack.