I am wondering:
Regarding what i read and hear the best to do with (in this case) AGM- deep cycle and super cycle batteries is following, in short:
- Always after use charge battery to full and after that, disconnect charger.
- If not used a fully charged battery for a period: After 1 or 2 months charge batteries again for maintenance purposes and to make sure a complete charge cycle is made.
- Do not interrupt charge when charging a fully charged battery, so do not charge batteries if not necessary and when it is not possible to finsih a complete charge cycle.
In my case:
I have a color control connected to a multiplus 12 volt, connected to 2 x 230 Ah in parallel.
The system can be monitored by the gsm module, so i have a constant network connection. Power drain in standby is around 0,2 amps due to data connection etc. When i use remote console, power drain is around 0,3-0,4 amps. So in other words: i am superslowly draining the batteries.
Do i keep the charger on or off when in standby? For my understanding, it is not very healthy to keep a charger always on whe u store batteries, even not when it has storage mode (see above for my understanding)
But in this case i am slowly draining the batteries, so is it better to leave the charger on when i am not on the boat for like 2 weeks?
For what i do now when i leave the boat:
I charge the batteries to 100 percent. I keep the color control online. After 2 weeks, the day before i go to the boat, i turn on the charger remotely.
Is this the best thing to do?
Best regards, Piet