Hatfield wrote:
I have a mint Grundig Satillit 400 (no its not a Yacht Boy).

Which runs on six C cells.

I would like to find a recharger that will charge six C cells all at
once.

The Ansmann Energy 16 will charge 6 C cells simultaneously:

http://www.thomas-distributing.com/a...er_5407013.htm

I own two of these and have been pleased with them. Excellent
performance and built like tanks.

The Maha MH-C808M will charge 8 C cells simultaneously:

http://www.thomas-distributing.com/m...ry-charger.htm

I've not used this charger, but I've used its close cousin the MH-C801D
(an AA/AAA-only unit) and been well satisfied.

Both of these are smart chargers that switch to trickle when the primary
charge finishes. Both have a conditioning function as well. Good stuff.

No connection to Thomas Distributing other than being a satisfied customer.


Well, I could buy two Rayovac rechargers (each of which can charge up
to four C cells all at once),

And I could then recharge two sets of three cells at the same time.

But I'm afraid that one recharger might charge up three cells to a
slightly higher voltage than the other charger does its three cells.

And that might well cause serious overheating of 3 cells when playing
the radio

Not a concern on the front end of the charge; NiMH batteries are
forgiving of slight voltage differences between them. What you do have
to watch out for is on the back end when they're nearly discharged,
because the stronger cells can keep trying to pull current through the
weaker cells and damage them permanently. Even that's not all that
likely though, if you use identical cells that have had similar lives
(roughly the same age, roughly the same duty, etc.).

I have another suggestion for you as well. Good-quality AA NiMH cells
are up to 2500-2600 mAh. You might consider getting some C-to-AA
adapters and running your radio on AAs. You can get a smaller, less
expensive charger then; the cells themselves are considerably cheaper;
and I suspect life would be more than acceptable.

[...]
--
Bo Williams -
http://hiwaay.net/~williams/