Lead acid battery charging

[Global]

I use a 12V  UNREGULATED wall wart plug in power supply at 500mAh.  On 
my 7 Ah sealed lead acid that means a charge for about 14 hours, but I 
have charged longer without any problem.  The reason for the unregulated 
stipulation is that a 12V wall wart puts out about 15V when not 
regulated.  The 12V battery needs around 13.5v to charge, the higher 
voltage I've found not to be a problem in the last 10 years. Haven't had 
it fail yet!

Tim

Alan Hewson wrote:

> Can someone please tell me if I can charge 12V lead/acid batteries 
> with my Hobbico Quick Field Charger MKII? If so, on what setting?
> If not, what is the best way to charge them. I think my 10 Amp car 
> charger might kill them. They are 5 amp hour 12V batteries.
> I also have a 800ma wall charger. Is that a better choice? Will it 
> over charge them if I leave it on too long?
> Thanks in advance
> Alan Hewson
>  
>  
> Laughing is good exercise......It's like jogging on the inside.
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