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From: T <T@invalid.invalid>
Newsgroups: comp.mobile.android
Subject: Re: 5 Volt for charging?
Date: Tue, 11 Jun 2024 14:00:04 -0700
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On 6/11/24 08:28, Arno Welzel wrote:
> T, 2024-06-09 09:42:
> 
>> We just had to run our third Li battery pack off to
>> recycling due to the battery swelling.  THis last one
>> actually cracked the case.
>>
>> So I am thing that I will build her a NiMH pack
>> that I can remove the batteries and charge them
>> on NiMH friendly charger.
>>
>> Two questions:
>>
>> 1) Am I right that the charging circuitry is
>> in the tablet not he battery pack?
> 
> That depends on the tablet. But at least some kind of protection
> circuitry is part of the battery pack.
> 
>> 2) Am I correct that I I need to do is provide
>> a regulated 5 volt souse?
> 
> Yes, the tablet may work with regulated 5V. However some Android devices
> don't work with a LiIon battery present. I had this issue with an old
> "Archos 35 Home Connect"
> (<https://arnowelzel.de/en/android-on-a-clock-radio>). The battery once
> didn't work any longer and I decided to remove the battery and use the
> device with external power only since the device was stationary anyway.
> However that didn't work. Without a battery connected the device didn't
> even power on even with external power provided.
> 
> Thank you!