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battery charger

Started by RichD July 19, 2021
I picked up a AAA NiMh battery charger. 
The label reads: 
Output: 1.2 V   800 mA 
AA/AAA charging: 120 mA 

Why the two different current specs? 
Does not compute - 

-- 
Rich
On 2021/07/19 4:54 p.m., RichD wrote:
> I picked up a AAA NiMh battery charger. > The label reads: > Output: 1.2 V 800 mA > AA/AAA charging: 120 mA > > Why the two different current specs? > Does not compute - >
Smaller batteries overheat more easily... John :-#)#
On Monday, July 19, 2021 at 4:54:41 PM UTC-7, RichD wrote:
> I picked up a AAA NiMh battery charger. > The label reads: > Output: 1.2 V 800 mA > AA/AAA charging: 120 mA > > Why the two different current specs? > Does not compute -
If the power output is at 1.2V, it's charging cells in parallel. If it delivers 800 mA into a 1.2V load, that's good for six cells in parallel? The 120 mA could be a per-cell limit, or into a 1.4V -1.6V load (fully-charged cell)
 RichDope wrote:
=================
> I picked up a AAA NiMh battery charger. > The label reads: > Output: 1.2 V 800 mA > AA/AAA charging: 120 mA > > Why the two different current specs? > Does not compute -
** Printing error - dummy. The first spec is for intended cell type. ..... Phil
On 7/19/2021 6:54 PM, RichD wrote:
> I picked up a AAA NiMh battery charger. > The label reads: > Output: 1.2 V 800 mA > AA/AAA charging: 120 mA > > Why the two different current specs? > Does not compute - >
Just guessing that the 1.2V 800mA is the battery rating and the 120mA is the charging current.
On 2021-07-19, RichD <r_delaney2001@yahoo.com> wrote:
> I picked up a AAA NiMh battery charger. > The label reads: > Output: 1.2 V 800 mA > AA/AAA charging: 120 mA > > Why the two different current specs? > Does not compute -
Maybe charges AA at 800mA and AAA at 120mA ? -- Jasen.