Since a car alternator puts out a little over 14 volts, you have probably
gone about as high as it will go. I usually see a recharged battery sag a
little if it sits overnight. Could your problem be with the maintenance
charger?
Jim Nichols
Tullahoma, TN USA
----- Original Message -----
From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>
To: "Olympus Camera Discussion" <olympus@xxxxxxxxxxxxxxxxx>
Sent: Tuesday, September 15, 2009 5:02 PM
Subject: Re: [OM] 12 volt battery advice
>I have assumed it's toast and ordered a new one from a local electronics
> supplier who promises delivery in 3 days. That's good because I need to
> do some formal outdoor portraits of a friend's daughter in her wedding
> dress before the wedding day. In the meantime I have put my old 6 amp
> car charger on the old battery and it is now charging at about 2 amps
> vs. the other 1.5 amp maintenance charger. After a couple of hours it
> raised the no load voltage to about 13.25 or about 0.4 volts higher than
> I had seen before. I think I will let it charge, then rest for 24 hours
> and then charge it again as per the advice on the Battery University link.
>
> I'm sure I'll send it off to the local toxic waste facility but I'm
> curious to see if it will be at least somewhat rejuvenated.
>
> Chuck Norcutt
>
>
> Ken Norton wrote:
>>> This battery is about 3 years old but rarely used and rarely charged.
>>> Do you think it's toast?
>>>
>>
>>
>> Without a regular float (maintenance) charge on the battery, I'd say,
>> yes,
>> it is probably toast. SLAs don't take to slow-drain very well.
>>
>> AG
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