Trojan t-1275 vs Signature series J150 RE
Before winter, I need to get a dedicated flooded house battery, my Northstar AGM-27 has been working hard as both house and engine battery for the last 4 months, and I want to return it to engine star...
Forum Discussion
Westend hit it perfectly.
Judging high amperage positive plate erosion "worth" is a long session ballet with an adding machine. The means has to be justified by the end. Cents or fractions thereof per total kWh rendered. My cost column includes generator wearout, driving for refueling, oil changes - every damned last nickel it costs to keep energy in the battery bank. In my case it is a 55-mile round trip eating 4 gallons of fuel to fill 55 gallon drums. = 14 US Dollars. Oil filters cost a few pennies under five dollars oil costs eight dollars a quart an S series Raycor filter around 11 dollars.
But it is all feeding a horribly expensive set of batteries.
When my son-in-law needs to recharge his LTH ciclando profundo gr 27 boat battery during an outage is when trouble brews - or used to. No way was the Kubota going to roar for that.
Answer? A DC to DC converter with 25-amp capability. Set to 14.8 volts. Charge lead wires are SIXTEEN AWG to control max amperage. His battery has 12-15 hours to suck off the Rolls 24-volt bank before he goes night air compressor diving again. Lobster. Legally with a license. Most of the kWh activity is for lighting.
Just like pure boondocking is utterly different as far as battery maintenance is concerned, recharging potential optimums are utterly dependent on kWh cost and time available to recharge. For a 100 AH flooded battery it would be tough to beat a 15 ampere limit on max bulk charging. Minimizing plate erosion costs nothing. No penalty.
But move that scenario way back in the wilderness and it's a different ballgame - utterly. Slow charging via generator is like leaving white French truffles, Beluga caviar, and Chateau Lafite Rothschild, for the babysitter to snack on. Don't forget the Monte Cristo and Jamaican Blue Mountain coffee using water imported from Tuscany. Daddy Warbucks types can forget all this and head for the 200 dollar per day 5-star golf links hideaway and pop all six slideouts.
Judging high amperage positive plate erosion "worth" is a long session ballet with an adding machine. The means has to be justified by the end. Cents or fractions thereof per total kWh rendered. My cost column includes generator wearout, driving for refueling, oil changes - every damned last nickel it costs to keep energy in the battery bank. In my case it is a 55-mile round trip eating 4 gallons of fuel to fill 55 gallon drums. = 14 US Dollars. Oil filters cost a few pennies under five dollars oil costs eight dollars a quart an S series Raycor filter around 11 dollars.
But it is all feeding a horribly expensive set of batteries.
When my son-in-law needs to recharge his LTH ciclando profundo gr 27 boat battery during an outage is when trouble brews - or used to. No way was the Kubota going to roar for that.
Answer? A DC to DC converter with 25-amp capability. Set to 14.8 volts. Charge lead wires are SIXTEEN AWG to control max amperage. His battery has 12-15 hours to suck off the Rolls 24-volt bank before he goes night air compressor diving again. Lobster. Legally with a license. Most of the kWh activity is for lighting.
Just like pure boondocking is utterly different as far as battery maintenance is concerned, recharging potential optimums are utterly dependent on kWh cost and time available to recharge. For a 100 AH flooded battery it would be tough to beat a 15 ampere limit on max bulk charging. Minimizing plate erosion costs nothing. No penalty.
But move that scenario way back in the wilderness and it's a different ballgame - utterly. Slow charging via generator is like leaving white French truffles, Beluga caviar, and Chateau Lafite Rothschild, for the babysitter to snack on. Don't forget the Monte Cristo and Jamaican Blue Mountain coffee using water imported from Tuscany. Daddy Warbucks types can forget all this and head for the 200 dollar per day 5-star golf links hideaway and pop all six slideouts.
