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Anybody tried AA sized LIPOs

Posted: Sun Apr 08, 2018 1:13 pm
by marnixk77
I am new to the forum, but have been reading a lot. I am gathering parts to make my own Gameboy zero. I was searching for a battery pack, and thought why not use AA sizied lipos ? You dont have to modify the battery compartment and you have 6v instead of 3.7v

I came across these https://www.ebay.com/itm/4PCS-1-5V-Etin ... SwmXlanOlM

With the above ones you get a nice 3240mAh. Anyone on the pros and no's on the idea?

Re: Anybody tried AA sized LIPOs

Posted: Sun Apr 08, 2018 2:26 pm
by VeteranGamer
marnixk77 wrote:
Sun Apr 08, 2018 1:13 pm
I am new to the forum, but have been reading a lot. I am gathering parts to make my own Gameboy zero. I was searching for a battery pack, and thought why not use AA sizied lipos ? You dont have to modify the battery compartment and you have 6v instead of 3.7v

I came across these https://www.ebay.com/itm/4PCS-1-5V-Etin ... SwmXlanOlM

With the above ones you get a nice 3240mAh. Anyone on the pros and no's on the idea?

welcome to the forum.....

nice idea....
but you might not have read enough....

you can get a 4000mah 3.7v battery for nearly half the cost, and it doesn't really require modifying the battery compartment....
(and might even weight less then those cell batteries)

https://de.aliexpress.com/item/BIHUADE- ... autifyAB=0

but if you want to go down the cell route, it is doable....
let us know how you get on...



.

Re: Anybody tried AA sized LIPOs

Posted: Sun Apr 08, 2018 2:32 pm
by moosepr
you need to take those ratings with a pinch of salt!! I would guess they are about 800mah per cell, so if you wire them in parallel then you will be getting 3200mah @ 3.7v

those cells you linked are weird, they say they are 1.5v output, but take 4.2v to charge!?! very strange

Re: Anybody tried AA sized LIPOs

Posted: Mon Apr 09, 2018 6:17 am
by MegaLoop
Very cool! No need to modify battery compartment! Also could be swapped on the go.

A normal Lipo outputs 3.7volts but looks like they are stepped down within the battery to 1.5volts. Can't be charged with anything but a specific charging unit. No need to use a boost but you'd have to get the volts down to 5 instead of 6 with a DC buck or something. Safe shutdown might be an issue.

I'm no electrical engineer but I see more pro than no. Kind of surprised this hasn't been done yet if it is indeed do-able.