How Long Should You Charge A 12 Volt Battery. Three-stage automatic 12-volt battery chargers are the most recommended for efficient charging. Even then you dont want to leave it on the charger longer than you must.
I assume youre talking about a battery in storage and in this case you truly mean battery since there is no such thing as a single cell thats a nominal 12 volts. No 12-volt battery will remain at over 14 volts for more than seconds unless its being charged. Depending on the age of your battery the capacity and construction of the charger and the charging technique used it may take a few hours to reach a complete charge.
Larger vehicle batteries can be charged in 50 hours at 2 amps or 10 hours at 10 amps.
At what voltage should you charge a 12V battery. There are major 2 type of lithium battery in the market. This is the best way to understand how to operate your marine battery charger. In this case 1 amp of current flowing for 1 hour charges the battery by 1 amp-hour.
