Here's a twist, I have a diesel truck that I use to pull my 5th wheel in the summer. But in the off-season I have it parked. It has two 12 volt Group 78 batteries with 62 amp hours, 800 cold cranking amps and 1000 cranking amps. I have been using one 2 amp maintenance charger on the batteries to keep them charged over the winter, and it can get to -35 to -38 here at times. So is 2 amp charger big enough or should I be using something larger?
That’s the perfect size maintenance charger for keeping your batteries fully charged and ready for starting your diesel engine. While a 2-amp charger could take over 100 hours to completely recharge those two batteries, your truck probably only needs a few hundred mA (milliamperes) of current to replace the small amount of power used by your truck’s computer and other electronics that are ON all of the time.
Here's a twist, I have a diesel truck that I use to pull my 5th wheel in the summer. But in the off-season I have it parked. It has two 12 volt Group 78 batteries with 62 amp hours, 800 cold cranking amps and 1000 cranking amps. I have been using one 2 amp maintenance charger on the batteries to keep them charged over the winter, and it can get to -35 to -38 here at times. So is 2 amp charger big enough or should I be using something larger?
That’s the perfect size maintenance charger for keeping your batteries fully charged and ready for starting your diesel engine. While a 2-amp charger could take over 100 hours to completely recharge those two batteries, your truck probably only needs a few hundred mA (milliamperes) of current to replace the small amount of power used by your truck’s computer and other electronics that are ON all of the time.