I need a quicker way to charge my Lifeline batteries.My idea is to find a small/light (portable) charger, that I can plug into my gas generator and connect directly to the batteries, to quickly charge the AGMs. Goal is ability to recharge from 50% DOD in about 4 hours.I want/need a charger that:1. Outputs 45 to 65 amps.2. User selects absorption voltage.3. User selects when to switch to float mode.4. Has a temperature sensor.My gas generator's output is 120 volts and 16.7 amps AC.Batteries are two 6 volts (220 Ahr).Is this idea reasonable? Does such a charger exist at a reasonable price?

I think you would be just fine with a PD9260 mounted close with #4 wire.Generally no.... that charger you want does not exist at a reasonable price.

Lifeline = Unique charging profile. Think bulk constant current to 14.3V and then absorb constant voltage to float and then 13.3V. I can't identify chargers that meet that criteria. Some may be close. Mex may chime in with manual chargers etc. He's likely right for his lifestyle and so be it. Your gen is OK. I can charge at 100A with 11A AC input. My rig is hardly ideal, 2 different battery banks, 3 different charging sources and that is just the beginning of the Magnum and Monaco design/cost tradeoffs.

d rocs wrote:My idea is to find a small/light (portable) charger,1. Outputs 45 to 65 amps.Is this idea reasonable? Does such a charger exist at a reasonable price?Alas no I don't think so.That kind of a charger won't be small or light and it won't be cheap.By any chance does your Gen. already have a 12 V output ?How long does it take your "standard" charging arrangement to do this task ? To get the rate you want it probably would be necessary to up the charging voltage above 15 and that's generally not good.

smkettner wrote:I think you would be just fine with a PD9260 mounted close with #4 wire.Generally no.... that charger you want does not exist at a reasonable price.Much as I like the Progressive Dynamics.. it has no temperature sensor. and is not user programmable as to voltage etc.I also have a no longer made Xantrex Prosine 2.0 Inverter/chargerThe charger module in this unit has all the features the O/P desires.User programmable voltages, Temp sensor with user programmable "Curve". Up to 100 amp (Throttable/limitable) charge potential. But of course it is way, way more expensive than the 9260 (Which is what I'd recommend if not for the temp sensor request since it dont' get better than a 9200 in my book) but thn it also microwaves lunch, which the 9200 can not do.(I have both (Well 9180 with wizard) in this RV.. I keep the charger on the Prosine off since it appears to have a leaky pass transistor (over charges per the display) and use the PDI which I like better anyway unless I am boondocking in which case I use 'em both (Faster recharge,, I have enough battery to need both) or the 9180 becomes unplugged (Happens from time to time and I usually figure it out long about 3AM and I am NOT getting dressed and going outside to plug back in when all i need is CLICK of the remote switch on the Prosine).

Quicker Battery charging | Good Sam Community

azrving
Explorer
Jul 14, 2015
Good not cheap
Quick charge
Vulcan_Rider
Explorer
Jul 14, 2015
d rocs wrote:

My idea is to find a small/light (portable) charger,

1. Outputs 45 to 65 amps.

Is this idea reasonable? Does such a charger exist at a reasonable price?

Alas no I don't think so.

That kind of a charger won't be small or light and it won't be cheap.

By any chance does your Gen. already have a 12 V output ?

How long does it take your "standard" charging arrangement to do this task ?

To get the rate you want it probably would be necessary to up the charging voltage above 15 and that's generally not good.
CA_Traveler
Explorer III
Jul 14, 2015
Lifeline = Unique charging profile. Think bulk constant current to 14.3V and then absorb constant voltage to float and then 13.3V. I can't identify chargers that meet that criteria. Some may be close. Mex may chime in with manual chargers etc. He's likely right for his lifestyle and so be it.

Your gen is OK. I can charge at 100A with 11A AC input.

My rig is hardly ideal, 2 different battery banks, 3 different charging sources and that is just the beginning of the Magnum and Monaco design/cost tradeoffs.
time2roll
Nomad
Jul 14, 2015
I think you would be just fine with a PD9260 mounted close with #4 wire.
Generally no.... that charger you want does not exist at a reasonable price.

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