Added a new battery monitor...(Aili)
Battery Monitor == Fun! Plus: How to avoid a common mistake regarding AH total I have a couple 2015 Thor Majestic 28a RVs. I added a 2nd 12v battery to the coach (they only came with one). My ba...
Forum Discussion
"If you set the capacity low, then you will think you are full before you are and ruin the batts from undercharging."
Not so, depending on his battery monitor
It says xx Amp hrs removed, AH returned
The percent of capacity remaining will show as lower, using 20Amp hrs from 100, is a larger percentage than using 20 Amp hrs from 122,
If bank is 200AH and 40AH is used the bank is 80% SOC, if the Bank is 244 AH and 40 AH are used the Bank is at 83% SOC
The key point is the monitor doesn't control the charging, it will stop counting and show 100% full capacity, when what was used is returned,
But it always takes a little more extra energy to replace what was removed, there is chemical conversion loss mainly as heat,
But the amps flow in will still show charging amps, you keep charging until amps flow In, is 0.5 per 100 Amp hrs, in this case 1 amp if battery capacity is really 200 AH , this eliminates the perkdrk effect ****.
Monitor will show 100% capacity when AH returned equals the AH removed, what ever that amount is,
But true 100% SOC is reached when the charge rate reaches the appropriate value, or you confirm cell status with a hydrometer
Not so, depending on his battery monitor
It says xx Amp hrs removed, AH returned
The percent of capacity remaining will show as lower, using 20Amp hrs from 100, is a larger percentage than using 20 Amp hrs from 122,
If bank is 200AH and 40AH is used the bank is 80% SOC, if the Bank is 244 AH and 40 AH are used the Bank is at 83% SOC
The key point is the monitor doesn't control the charging, it will stop counting and show 100% full capacity, when what was used is returned,
But it always takes a little more extra energy to replace what was removed, there is chemical conversion loss mainly as heat,
But the amps flow in will still show charging amps, you keep charging until amps flow In, is 0.5 per 100 Amp hrs, in this case 1 amp if battery capacity is really 200 AH , this eliminates the perkdrk effect ****.
Monitor will show 100% capacity when AH returned equals the AH removed, what ever that amount is,
But true 100% SOC is reached when the charge rate reaches the appropriate value, or you confirm cell status with a hydrometer
