Model Boat Mayhem
Technical, Techniques, Hints, and Tips => Batteries & Chargers => Topic started by: petesubman on April 01, 2017, 05:17:20 pm
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I use this charger to charge up my f14 battery pack ,would this charger be suitable for 20 cell 12v nimh pack,regards pete
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Evening Pete,
I have a Robbe Lader 6, that is limited to 9.6v, it's written on a sticker on the back. I used to have a Lader 5 but it was moved on with a boat some time ago.
You say 20 cell 12v, is that two ten cell packs in parallel? If so I would charge the two lots of ten cell separately anyway, avoids confused batteries and confused chargers, and confused Mayhemmers!
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Pm sent
Spud
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Hi Spud, didnt get the pm, thanks u/b nautilus confession time , im in the process of rebuilding an engels lafayette with 2 10 cell battery packs regards Pete
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I haven't seen the instructions for one of these but on general principles - NiCad/NiMH chargers are generally current limited to suit the capacity of the battery being charged. As long as they give out more volts than the fully charged pack, they will offer the limited current, whatever the configuration of the battery. If it is capable of putting out 24 volts, it won't care whether it is charging 1 cell or 10, it will just give whatever it is set for, and will probably do so until it is disconnected. Fast charging is another story.
NiCad/NiMH don't really care what voltage is used to charge them, BUT they are picky about the current being shoved through them, so their chargers need to be current limited, as opposed to SLA where they do need something to limit the voltage as well. Or Lithium types where asbestos gloves and a magic wand and a concrete shed at the end of the garden are useful.
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Hi Pete
Hopefully you have now :-)
Spud