PD 9260 how long to charge?

[brulaz]

I've heard that people with the PD9260 (or similar) use the pendant to force the charger to stay in boost mode (14.4V) while running their genny. To get Max charge with min gen time.

Ok, but how do you figure how long to leave it in boost?

Say, in my case, I've depleted the batteries by ~50%, that's 100Ah that needs to be put back in the batts.

The PD9260 is 1000W with output of 13.6 VDC, 60 Amp according to the docs.

How long would it take to recharge the batts at 14.4V?

Or instead of guessing, do you use something like a Trimetrics meter to measure Ah in and out?

[BFL13]

On generator you stop the charge at 80 or 90%. the last bit top "full" would take forever.

How to tell when to stop? the boost lasts four hours when you put it there manually so that is longer than you need as seen above, so you stop at the amps marker for 90% (5 amps per battery) so when amps taper to 10 amps with two batts.

If you want to stop at 80% or 85% just look at the above graph and see what the amps are for that SOC and adjust for the number of batts you have. it is proportionate. Four batts you stop at 20 amps instead of stopping at 10 with two batts.

If your charger does not have an amps read-out and you don't have an ammeter Trimetric, whatever, then use the ugly graph times and just stop when you have run that long.

Another way to do it is suggested by smk on here, that you let it run till your batts reach 14.4, then run it for one more hour and stop. You can see that would work by looking at the ugly graph