I Like Big Batteries! (and i cannot lie)

SumCanadianGuy · Post by **SumCanadianGuy** » Fri Sep 01, 2017 10:26 pm

I fixed it, no worries. Still having the same issue I always have had though. Even with 100% charging the batteries outside the GBZ I immediately get battery low warning and then it shuts down.

YaYa · Post by **YaYa** » Sat Sep 02, 2017 1:55 am

are your batteries new ? you may have a damaged battery maybe and thus lacking power

SumCanadianGuy · Post by **SumCanadianGuy** » Sat Sep 02, 2017 2:00 am

No they are battewries I took from phones with smashed screens. I am thinking that is the issue though. Just to be safe I rewired all of my power circuitry tonight (this morning? idk, it's 3 A.M. now) and it sure looks like it is lacking power. When the pi has activity the screen and powerboost led dim. I am going to try to get one of the batteries from @Dextech, but they seem like they are hard to get. My last battery would barely last an hour and was supposedly a 4000mAh.

YaYa · Post by **YaYa** » Sat Sep 02, 2017 2:05 am

Do you have a testing device like a voltmeter ?
Charge each battery individually and test them, you should read around 4.2V when fully charged otherwise, just throw them to the battery recycle bin

YaYa · Post by **YaYa** » Sat Sep 02, 2017 2:06 am

Depending on where you are located, you have the MbuyNow 4800mAh Samsung Galaxy S2/i9100 battery that fits the battery case of the DMG with a little grinding... Many people here (so do i) use it !

YaYa · Post by **YaYa** » Sat Sep 02, 2017 2:09 am

And i forgot to say that putting batteries in parallel is not a difficult thing but should require you to pay attention to what you are doing. You can easily ruin a pack or make it explode, burn and so...

Read this post where i explain the process.
http://www.sudomod.com/forum/viewtopic. ... 4&start=20 (third post from the page beginning)

SumCanadianGuy · Post by **SumCanadianGuy** » Sat Sep 02, 2017 2:09 am

I charged and tested them both and they both reached 4.2v. I charged them in the broken phones before soldering them up. I might have to look into that battery. I just hate ordering things that do not fit. I have a ton of 4000mAh batteries laying around that I can't make fit in the case

YaYa · Post by **YaYa** » Sat Sep 02, 2017 2:16 am

http://www.sudomod.com/forum/viewtopic.php?t=3197

look at the battery pictures... This is the battery that i'm talking about

SumCanadianGuy · Post by **SumCanadianGuy** » Sat Sep 02, 2017 2:25 am

I can't find one over 3200 here, but I found this. Might have an appropriate sized one in it.

https://www.amazon.ca/dp/B018MKMVGU/ref ... QzbQQ44EC7

EDIT
I ordered it so I'll find out in a week

erik_gee · Post by **erik_gee** » Sat Sep 02, 2017 11:03 pm

SumCanadianGuy wrote: ↑
Fri Sep 01, 2017 4:09 pm
I have 2 Samsung phone batteries wired together in mine. One is 3100 and one is 2000 so I effectively have a very slim 5100mAh in my unit. I literally just wired it up and am currently charging it so I am not sure how long it will run for yet.

EDIT: Such beautiful. Much cable managed. So Samsung. Wow.

I don't want to be that guy, but have you looked up proper procedure for wiring batteries together ? It can be very dangerous having 2 batteries in parallel that we're properly matched, as current can flow into a lower battery and cycle, potentially causing an explosion.

I Like Big Batteries! (and i cannot lie)

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