You need to stick with whatever chemistry that was installed by the OEM
because the voltages and charge profiles are unique to whatever
chemistry was used. There are universal (or near-universal) chargers on
the market today, but this is application specific.
bp
<part15sbs{at}gmail{dot}com>
On 11/18/2022 9:53 AM, Josh Luthman wrote:
And charge chemistry?
On Thu, Nov 17, 2022 at 5:45 PM Bill Prince <part15...@gmail.com> wrote:
Most of those devices will either use AA, or sometimes AAA size
batteries. If it looks "custom", it is often 2 or 3 or 4 of those
size
batteries soldered together and wrapped with plastic. You can
simulate
whatever they use (alkiline, NiMH, NiCad, or LFP) if you slice
open the
plastic to see what's inside. The main issue being the voltage.
bp
<part15sbs{at}gmail{dot}com>
On 11/17/2022 2:29 PM, Nate Burke wrote:
> I have a customer with a Yealink CP930W cordless speakerphone.
They
> say the battery won't hold a charge anymore, I expected that it
would
> be a simple method of replacing the battery, but Googling has
come up
> empty. Is it not a user replaceable battery? I have not physically
> seen the phone, it was installed by another company. I thought
there
> would at least be a manual, or video of someone doing it, but
nothing
> so far. Not even what battery is in it.
>
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