Hello,
So my first house AGM battery died after less than a year of light use. The manufacture replaced it under warranty, but I want to make sure that the replacement doesn't also die an untimely death due to any mistake on my part.
Here are the relevant details:
- 200aH AGM house batter
- connected to a Sterline BB1230 battery to battery charger.
- I have a Victron system monitor connected to the system.
- Victron shows charging voltages (on the positive busbar) inline with the Sterling's indicated output voltage.
- a Voltage meter at the batter monitors shows no voltage drop from the positive busbar.
- I asked the manufacturer for charging details, and they weren't able to provide anything (in terms of correct 3-stage profiles), but this is printed on the side of the battery:
Constant Voltage Charge at 20c | Voltage Regulation | Initial Current
Standby Use | 13.6-13.8v | no limit
Cyclic Use | 14.6 -14.8v | 60a
I interpreted these to mean that the bulk|absorb voltage for this should be 14.6-14.8v at no more than 60a (the charger only puts out 20 or 30) and it should float at 13.6-13.8a.
The sterling charger has a number of profiles. The "AGM 2" one is the closest in terms of voltage, it has the following specs:
Bulk/Absorb 14.6v, cond: 14.1v, float: 13.7v. min absorb minutes: 60, max absorb min: 480
Am I correct that I can just turn this system on, (never discharging the battery below 50-60% of capacity) and it should take decent care of it? Am I missing anything? How does the b2b charger know when to switch phases, i.e. if the battery is fully charged will it "cook it" by attempting to force absorption when it should be in foat?
Pretty new to the electrical stuff.
Thanks in advance! I know there are a lot of details here.
So my first house AGM battery died after less than a year of light use. The manufacture replaced it under warranty, but I want to make sure that the replacement doesn't also die an untimely death due to any mistake on my part.
Here are the relevant details:
- 200aH AGM house batter
- connected to a Sterline BB1230 battery to battery charger.
- I have a Victron system monitor connected to the system.
- Victron shows charging voltages (on the positive busbar) inline with the Sterling's indicated output voltage.
- a Voltage meter at the batter monitors shows no voltage drop from the positive busbar.
- I asked the manufacturer for charging details, and they weren't able to provide anything (in terms of correct 3-stage profiles), but this is printed on the side of the battery:
Constant Voltage Charge at 20c | Voltage Regulation | Initial Current
Standby Use | 13.6-13.8v | no limit
Cyclic Use | 14.6 -14.8v | 60a
I interpreted these to mean that the bulk|absorb voltage for this should be 14.6-14.8v at no more than 60a (the charger only puts out 20 or 30) and it should float at 13.6-13.8a.
The sterling charger has a number of profiles. The "AGM 2" one is the closest in terms of voltage, it has the following specs:
Bulk/Absorb 14.6v, cond: 14.1v, float: 13.7v. min absorb minutes: 60, max absorb min: 480
Am I correct that I can just turn this system on, (never discharging the battery below 50-60% of capacity) and it should take decent care of it? Am I missing anything? How does the b2b charger know when to switch phases, i.e. if the battery is fully charged will it "cook it" by attempting to force absorption when it should be in foat?
Pretty new to the electrical stuff.
Thanks in advance! I know there are a lot of details here.
