recharging 2000mAh AA NiMHs in 15 mins??!!

[PandaBear]

Dunno how they do it, but that suggests pumping 8A
or more into the AAs… without them blowing up.

RAYOVAC 15min Charger

[jamiekulhanek]

What the bloody hell??? I read about it….but am finding believing it tricky.

Does this new “In cell charger” mean our peak detection chargers wont work??? Dang!!!

I can charge my AAA’s in less than 15 minutes, just stick em in a freezer bag, dunk em in a cup of Icy water and key in ~4A on the charger…..I only do this when i am in an impatient mood, usually its a gentle 1.2A for 40 odd minutes.

[micro_Amps]

Does it actually say they are 2000mAH? I couldnt find it.
Seems odd, but interesting.
Must be some kind of pulse charger.
I’d be interested to find out more, not to mention a little sceptical.
:)uA

[PandaBear]

Quote:

Does it actually say they are 2000mAH? I couldnt find it.

Look closely at the pic of the cell… right under “..GEABLE”.

Its a AA NiMH anyway, most good brands do 2000 by now.

They’ve got AAAs too… but like you said, I haven’t
found out what their rating is. 850-900 would be nice.

Quote:

Must be some kind of pulse charger.
I’d be interested to find out more, not to mention a little sceptical.

Thought NiMH never liked pulse charging, only linear?

Me speculating its just batteries that have a built in temp sensor,
which the charger uses to regulate the current. If it warms up
too much it’ll wind the amps down.

[jamiekulhanek]

Then if it winds the current down how does the bloody thing charge in 15 minutes???

[PandaBear]

Maybe if you stuck an icepack on it, or stuck the whole machine in the freezer (with the wire hanging out thru the door seal)… :smiley2:

[jamiekulhanek]

I used to use icepacks to cool my cells, now i just put them in a glad bag and stick em in a cup of iced water…..you can charge the cells in 15 minutes and still retain most of their lifespan.

[Author]

Posts