Forum Discussion
landyacht318
Aug 23, 2013Explorer
The general populace has a pattern when it comes to batteries and their charging.
1. The alternator is a Magical, near instantaneous battery charger
2. When the green light goes on, the battery is fully charged
3. Since batteries are big and heavy, heavier than a wall outlet, they must therefore be able to store nearly unlimited energy.
4. Any dead battery need only be charged for 6 hours to return to 100% performance.
5. Wally world batteries made by Johnson control are the same JC batteries made for Interstate.
6. The word Marine in front of any battery means the battery has magical powers. It can store more energy, turn over any motor at any state of charge, and completely recover from abuse.
7. Your choice
The more knowledgeable on this forum can spend a lifetime negating 1 through 7, and there will always be someone who will ask a 6v vs 12v battery thread, because nobody nowhere has ever thought to ask that before, so why do a search and do some reading?
In regards to this thread, number 1 the batteries are not being fully charged in the time provided. The sum of all loads are unknown.
and Wally world Marine batteries are not trojans.
Sounds like they've been too deeply discharged too often and need a BFL13 treatment to get the SG back up into the green. Who knows how much capacity has been lost through the abuse of too deep a discharge and incomplete recharging.
1. The alternator is a Magical, near instantaneous battery charger
2. When the green light goes on, the battery is fully charged
3. Since batteries are big and heavy, heavier than a wall outlet, they must therefore be able to store nearly unlimited energy.
4. Any dead battery need only be charged for 6 hours to return to 100% performance.
5. Wally world batteries made by Johnson control are the same JC batteries made for Interstate.
6. The word Marine in front of any battery means the battery has magical powers. It can store more energy, turn over any motor at any state of charge, and completely recover from abuse.
7. Your choice
The more knowledgeable on this forum can spend a lifetime negating 1 through 7, and there will always be someone who will ask a 6v vs 12v battery thread, because nobody nowhere has ever thought to ask that before, so why do a search and do some reading?
In regards to this thread, number 1 the batteries are not being fully charged in the time provided. The sum of all loads are unknown.
and Wally world Marine batteries are not trojans.
Sounds like they've been too deeply discharged too often and need a BFL13 treatment to get the SG back up into the green. Who knows how much capacity has been lost through the abuse of too deep a discharge and incomplete recharging.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,326 PostsLatest Activity: Oct 24, 2025