alex nicol Posted January 19, 2020 Share Posted January 19, 2020 I'm looking for a fast charger capable of charging multiple 4.8v & 6v rx flight packs (nimh) Is there any such reasonably priced item out there you'd recommend. Thanks Quote Link to comment Share on other sites More sharing options...
Trevor Crook Posted January 20, 2020 Share Posted January 20, 2020 How fast? Mains or 12V powered? Quote Link to comment Share on other sites More sharing options...
Gary Manuel Posted January 20, 2020 Share Posted January 20, 2020 I wouldn't recommend fast charging Nimh's. Quote Link to comment Share on other sites More sharing options...
Mike T Posted January 20, 2020 Share Posted January 20, 2020 You shouldn't zap NiMH like you would a NiCd, but 2C is generally reckoned to be OK. I recently bought one of these: Turnigy Quad 4x6S , primarily for LiPos, but it will do everything else as well. Seems to be working very well so far (about 6 months use). There's no mains input - I just get 12v from a cheap converted server rack supply. Quote Link to comment Share on other sites More sharing options...
Nigel R Posted January 20, 2020 Share Posted January 20, 2020 If you have a 12V supply capable of a few hundred mA, a 5W 40Ohm dropper resistor will get you around 150mA current into a nimh pack for trickle charging. Couldn't be simpler and is all I regularly use on nimhs*. Overnight trickle charging also has the handy benefit of balancing the cells - something a one hour charger will not do. * Barring an occasional capacity check done via a standard four button charger. Quote Link to comment Share on other sites More sharing options...
alex nicol Posted January 20, 2020 Author Share Posted January 20, 2020 Gents, Thanks for your responses. My current set up is an old Fuzzy logic charger powered from an old 12v car battery. The flight packs are 2600mah which I charge at 700ma and it takes approx 3.5hrs. The reason for my question is occasionally I may take a couple of Petrol models with me and I was looking for a reasonably quick/simple way to charge 2 ignition packs and 2 Rx packs. By quick I mean 3.5-4hrs ish Quote Link to comment Share on other sites More sharing options...
Frank Skilbeck Posted January 20, 2020 Share Posted January 20, 2020 If you want to charge up 4 pack simultaneously then the Turnigy charger above would do that, plus it will have a cycle facility so you can periodically discharge and recharge them. If you wanted a mains/battery powered unit then I've been using the Overlander/SkyRC D100 dual charger, which has worked well, but it can only do 2 batteries at a time. Quote Link to comment Share on other sites More sharing options...
Nigel R Posted January 20, 2020 Share Posted January 20, 2020 If you're looking at charging at the field in that kind of time, I'd use a single charger, do them one at a time at a 'one hour' charge rate. Any of the 4 button jobs should do it. Quote Link to comment Share on other sites More sharing options...
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