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#1
29-12-2007
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want a good cheap 12 volt charger? look here
http://www.aldi.co.uk/uk/html/offers/58_4632.htm
just got one for my self small and good bit of kit!
__________________
MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD 
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#3
30-12-2007
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mine charges abotu about 0.5mah its super slow its 40 years old but its never missed a beat charges my 12 volts loverly. so 3.8 is fine.
A
__________________
Ashley Williams I always thought by 2013 we would have flying cars, but we have got blankets with sleeves!
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#4
30-12-2007
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A 100Ah battery would take around 24 hours to charge at that rate, not too hideous. 0.5A charging must take all week!
As an aside, could a 12v lead acid charger be used as a 12v supply for a NiMh charger? Probably a dumb question, but thought I'd ask.
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#5
30-12-2007
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Quote:
as has been said it will charge a 110amp battery in around 24 hours from flat, it then has maintanence charge to keep it topped up. so to to a 12 volt up in your hotel room over nite between races would be fine. besides for the price and a 3 year garantee can you go wrong? dont get why you think 3.8 amps is not enough ash's will prob take for ever but i bet his 12 volt lasts a long time too!
__________________
MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD
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#6
13-01-2008
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It's slightly odd that they quote the charge rate at all. My understanding is that instead of being charged at a constant current (unlike the NiMH and NiCads we all use) lead acid batteries are actually charged at a constant voltage and the current drops as the battery gets nearer to being charged.
In answer to the question of whether you can use it as a power supply for a 12v NiMh charger, no - not directly. You could have it on the battery while your NiMh is also on the battery but it probably would not be good without the battery. I have found that it works for me to have my lead acid charger charging at the same time as I am using the battery to charge my NiMh batteries, but my NiMh battery charger (an orion) shows a lot of fluctuations on the current, it's much steadier just off the battery. I think the two devices are constantly monitoring and adjusting so they both end up going up and down.
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#7
13-01-2008
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Quote:
A
__________________
Ashley Williams I always thought by 2013 we would have flying cars, but we have got blankets with sleeves!
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