Is my charging system working correctly?

[BonairII]

I'm using an Everstart marine battery as my starting battery. It's a new battery.
EverStart 27DC-6 Marine Battery: Automotive : Walmart.com

It's only used for starting the motor...everything else(bilge pumps, lights etc) are run off my trolling motor battery.


During a typical day on the water....I start the motor 3-4 times. And run the motor a total of 10-15 mins getting to different fishing areas. When I get home and put the battery on a charger it's at around 12.3v (75% according to my Schumacher 15A charger).

My tach works fine, so I'm assuming that the rectifier is working properly...and charging my battery.

Is the short amount of time I run my motor (10-15mins) enough time to recharge the juice that was used to start my motor 3-4 times?

 

[Don S]

Re: Is my charging system working correctly?

My tach works fine, so I'm assuming that the rectifier is working properly...and charging my battery.

That doesn't tell you if the charging system is working or not, going to move this over to the Evinrude forum (motor in your singnature) since it's a motor problem.

 

[Will Bark]

Re: Is my charging system working correctly?

Take a reading of your battery's voltage before you start the engine; then take a reading at the battery after the engine is running. If the reading is higher then you are charging. These engines do not have the same type of charging equipment as a truck or car; they take time to recharge a battery 6 amps at the time. Good luck