Quote:
Originally Posted by SGSST109E
The key with an Optima battery is the voltage. You don't want the volt. during a charge to exceed 14.5V. You could put 1000 amps thru it and not hurt it, but to high a voltage will. I work for the company that owns Optima. The Optima charger or a Battery tender. I have always used yellow tops in my race car and trailer. I used a Battery Tender 5amp charger. If you charge it over night you will be good to go. If you have an alternator you can race a whole nat. or div. race without touching it. If you use a big sears charger just watch the voltage.
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Is any charger that is rated for AGM good to use on Optima batteries?