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comp / comp.mobile.android / Re: 5 Volt for charging?

SubjectAuthor
* 5 Volt for charging?T
`* Re: 5 Volt for charging?Arno Welzel
 `- Re: 5 Volt for charging?T

1
Subject: 5 Volt for charging?
From: T
Newsgroups: comp.mobile.android
Organization: A noiseless patient Spider
Date: Sun, 9 Jun 2024 07:42 UTC
Path: eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: T@invalid.invalid (T)
Newsgroups: comp.mobile.android
Subject: 5 Volt for charging?
Date: Sun, 9 Jun 2024 00:42:48 -0700
Organization: A noiseless patient Spider
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Hi All,

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?

2) Am I correct that I I need to do is provide
a regulated 5 volt souse?

Many thanks,
-T

Subject: Re: 5 Volt for charging?
From: Arno Welzel
Newsgroups: comp.mobile.android
Date: Tue, 11 Jun 2024 15:28 UTC
References: 1
Path: eternal-september.org!news.eternal-september.org!feeder3.eternal-september.org!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: usenet@arnowelzel.de (Arno Welzel)
Newsgroups: comp.mobile.android
Subject: Re: 5 Volt for charging?
Date: Tue, 11 Jun 2024 17:28:57 +0200
Lines: 35
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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.

--
Arno Welzel
https://arnowelzel.de

Subject: Re: 5 Volt for charging?
From: T
Newsgroups: comp.mobile.android
Organization: A noiseless patient Spider
Date: Tue, 11 Jun 2024 21:00 UTC
References: 1 2
Path: eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: T@invalid.invalid (T)
Newsgroups: comp.mobile.android
Subject: Re: 5 Volt for charging?
Date: Tue, 11 Jun 2024 14:00:04 -0700
Organization: A noiseless patient Spider
Lines: 34
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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!

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