mintyPi Frequently Asked Questions **READ THIS**

General mintyPi-related chat goes here. Share ideas, ask questions that don't fit into the hardware/software help forums, etc.
affensause
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Re: Available room dimensions for battery

Post by affensause » Fri May 19, 2017 6:08 am

Found: 1100mAh (0,5mm thicker though)
https://eckstein-shop.de/PKCELL-LiPo-Ak ... -Connector

Specs: http://ecksteinimg.de/Datasheet/LP52346 ... 161116.pdf

same manufacturer as the Adafruits cells.


@Wermy: What's the runtime for the 1200 mAh pack when BT and WIFI are disabled?
Thanks

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wermy
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Re: Available room dimensions for battery

Post by wermy » Fri May 19, 2017 9:45 am

affensause wrote:
Fri May 19, 2017 6:08 am
Found: 1100mAh (0,5mm thicker though)
https://eckstein-shop.de/PKCELL-LiPo-Ak ... -Connector

Specs: http://ecksteinimg.de/Datasheet/LP52346 ... 161116.pdf

same manufacturer as the Adafruits cells.


@Wermy: What's the runtime for the 1200 mAh pack when BT and WIFI are disabled?
Thanks
I'll run some tests this weekend - been meaning to do that for weeks anyway. :)
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affensause
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Re: Available room dimensions for battery

Post by affensause » Mon May 22, 2017 2:37 am

Perfect, thank!

I'll buy it anyway. More than 2 hours is overkill for that small pocket device anyway. Guess you can't play with adult hands more than 1 hour before cramping :)

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moosepr
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Re: Available room dimensions for battery

Post by moosepr » Mon May 22, 2017 3:40 am

my guess is 3-4 hours, with everything on!!
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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wermy
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Re: Available room dimensions for battery

Post by wermy » Mon May 22, 2017 8:20 am

Alright, so I tested this weekend using a 2.4" screen. Got right at 3 hours out of it. This was on a non-W RP0 (all I had soldered up to a screen at the time), but this should be a good approximation of using it with wifi/BT disabled. From what I'm reading online the W only uses ~20mA more, so I'd estimate that to put you between 2.5-3 hours with wifi on. Not earth-shattering but for a mint-tin-based gaming handheld I'd say it's alright. And hey, it beats the Switch's battery life when playing Zelda Breath of the Wild. :)
Also, there is a chance that using the custom PCB for buttons has freed up enough space that a 2000mAh battery is an option. That should put you up around 4 hours. I'll know for sure once I get the final set of parts here and can put one together using it.
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Re: Available room dimensions for battery

Post by djbriane » Mon May 22, 2017 11:38 am

Is there a way to enable/disable the Wifi / Bluetooth via Retropie (with a custom shell script or somesuch?) to save some battery life when it isn't needed?

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Re: Available room dimensions for battery

Post by affensause » Tue May 23, 2017 4:09 am

Great news! Replied on twitter :)
1100 Lipo ordered. Should run 2:45 :)

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Re: Available room dimensions for battery

Post by cronos_artist » Mon May 29, 2017 1:58 pm

http://www.ebay.com/itm/TZUMI-POCKET-JU ... SwtGlZEUc9 the li-po I pulled was 60.8mm x50.9mm x9.2mm at 4000mah

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Re: Available room dimensions for battery

Post by affensause » Mon May 29, 2017 2:47 pm

9.2 mm might already be too thick to fit

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Re: Available room dimensions for battery

Post by cronos_artist » Mon May 29, 2017 2:57 pm

Yeah fits great without all the additional guts

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