How long should a battery last?
Typical code 24 battery, how long should it last with lights and electric RV fridge? I am only getting about 24 hours before it gets under 11.5V. Also, would a battery shop have a way to properly test...
Forum Discussion
First, a pair of 6V golf cart batteries will last longer and not cost much more (or possibly less !) than a Marine/RV dual purpose or standard car battery.
You can do a fairly accurate home test on a battery with 3 things. A charger, a meter and a load like a head light bulb (5A-10A).
• Disconnect battery.
• Charge battery for at least 12 hours.
• Remove from charger and let "rest" for 15 - 30 minutes.
• Check voltage it should be 13.0V - 13.2V. If not, repeat step one or replace battery.
• Connect light bulb (or 2) for about 10 minutes.
• With bulb still connected, voltage should be about 12V or higher.
• Disconnect light bulb. Wait 10 minutes and check voltage. It should be a bit higher now.
You can do a fairly accurate home test on a battery with 3 things. A charger, a meter and a load like a head light bulb (5A-10A).
• Disconnect battery.
• Charge battery for at least 12 hours.
• Remove from charger and let "rest" for 15 - 30 minutes.
• Check voltage it should be 13.0V - 13.2V. If not, repeat step one or replace battery.
• Connect light bulb (or 2) for about 10 minutes.
• With bulb still connected, voltage should be about 12V or higher.
• Disconnect light bulb. Wait 10 minutes and check voltage. It should be a bit higher now.
