Help choosing the right converter/charger?
Hi My TT has a Parallax 7345 converter. For the past year I have been using 550 watts of Solar and a MPPT controller charging my batteries. We have a 12V system at the moment. And I am using (4) 6V...
Forum Discussion
Battery manufacture charge parameter recommendations assume a charger plugged into the grid and 8 to 10 hours to reach full charge, So they choose a rate and absorption voltage giving the best change of allowing the btteries to make it well past the warranty period.
When one is generator recharging, those specs can be acknowledged and then ignored and surpassed, because 100% full is not happening on generator power and a much higher charge rate achieving a higher state of charge before generator shut down, is less damaging to them then a low and slow charge rate which allows the btteries to sag further and further each insufficient recharge in the timespan they are allowed to recharge.
Do not fear the high amp recharge when generator recharging. Ignore teh manufacturer recommendations when they say no more than 13% or 20%. The execeptions might be the lower $$ AGMS which say to limit charge current to 30%, but perhaps not.
I have regularly exceeded flooded battery recommendations 4 and 5 fold and still achieved a respectable amount of cycles.
grandpa's trickle charge everything everytime mentatlity is much more damaging and a high charge rate in regularly deeply cycled batteries.
Size charger to max out generator and don;t worry about exceeding trojans 10 to 13% recommendation, or USbattery's 10% recommendation, and IR gun in hand, UPG AGMs 30% recommendation.
PD now sells the 14.8 volt versions of all their PD9200 series chargers for those whom do not think 14.4v is sufficient.
When one is generator recharging, those specs can be acknowledged and then ignored and surpassed, because 100% full is not happening on generator power and a much higher charge rate achieving a higher state of charge before generator shut down, is less damaging to them then a low and slow charge rate which allows the btteries to sag further and further each insufficient recharge in the timespan they are allowed to recharge.
Do not fear the high amp recharge when generator recharging. Ignore teh manufacturer recommendations when they say no more than 13% or 20%. The execeptions might be the lower $$ AGMS which say to limit charge current to 30%, but perhaps not.
I have regularly exceeded flooded battery recommendations 4 and 5 fold and still achieved a respectable amount of cycles.
grandpa's trickle charge everything everytime mentatlity is much more damaging and a high charge rate in regularly deeply cycled batteries.
Size charger to max out generator and don;t worry about exceeding trojans 10 to 13% recommendation, or USbattery's 10% recommendation, and IR gun in hand, UPG AGMs 30% recommendation.
PD now sells the 14.8 volt versions of all their PD9200 series chargers for those whom do not think 14.4v is sufficient.
