Anybody tried AA sized LIPOs

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marnixk77
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Anybody tried AA sized LIPOs

Post by marnixk77 » 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?

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VeteranGamer
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Re: Anybody tried AA sized LIPOs

Post by VeteranGamer » Sun Apr 08, 2018 2:26 pm

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...



.

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moosepr
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Re: Anybody tried AA sized LIPOs

Post by moosepr » Sun Apr 08, 2018 2:32 pm

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
Get a small cheep LCD in your project https://www.sudomod.com/forum/viewtopic.php?f=22&t=2312
Wrap it all round a battery https://www.sudomod.com/forum/viewtopic.php?f=13&t=2292
Or use a custom PCB to make it really small https://www.sudomod.com/forum/viewtopic.php?f=13&t=2512
or make it really really really really tiny!! https://www.sudomod.com/forum/viewtopic.php?f=13&t=2919

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Re: Anybody tried AA sized LIPOs

Post by MegaLoop » Mon Apr 09, 2018 6:17 am

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.

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