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Small battery pack for laptop
#1
After looking around for first what battries to use I have landed on 32650 LiFePO4 for a small 4s2p x2 pack to run my gaming laptop for a hopeful ~5(gaming) hours using a 12 to 24v (if i can find a 12 to 20v that would be much better). I amd going with 32650 as they have a large capacity and cheap ish(aliexpress $4-6) and have more room for "cheap chinese" 7000mah is the max that I can find.

after considering what battery packs to use as their are none to buy would like to make a 4s2p box using a 3D printer (college).
basically im wondering weather i should and can submerge the battery in epoxy or resin to protect from external damage and in the even of mistakes and explosions would this suffocate the from the oxygen.
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#2
I'm no expert here, but I wouldn't fully encase the battery pack in something airtight as if batteries start venting you have effectively made a bomb.

Cheers

Steve
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#3
(11-21-2018, 02:33 PM)Ste Collister Wrote: I'm no expert here, but I wouldn't fully encase the battery pack in something airtight as if batteries start venting you have effectively made a bomb.

Cheers

Steve

Agreed. Lithium batteries do not require oxygen to burn. You cannot extinguish them if they catch fire, only contain the fire.

Also I think that seller may be overstating the capacity. Beware of chinese fakes.
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#4
The seller is not overstating capacity.

32650s are absolutely massive. If you think 26650s are large, then 32650s are giants.
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#5
so dont keep the battery's sealed but keep them in a case.
thankfully Iwont need to use a spot welder as most of them use screws
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