27DCs and SG Lag Problems

BFL13 wrote:
Go back to the basics and then read that again.

When you start the recharge, the charger is set at some voltage or other. Say 14.8. The battery voltage rises to that. That was the Bulk stage. Now you want to hold that voltage there and do the Absorption stage, which has the amps tapering until the battery is charged up. Then, you want to go to the Float stage voltage so you don't overcharge the batteries by staying at that high absorption voltage.

The Iota is set at 14.8, gets the batts to 14.6 (not 14.8) and then it drops to 14.2 and does the absorption stage. It drops to 14.2 shortly (15 minutes) after getting the batts to 14.6.

How long is the bulk stage? It depends on the charging amps of the charger compared with the AH capacity of the battery bank and how low that was in SOC at the start. The higher the amps per Bank AH, the faster it will get the batts to 14.6. and at a lower SOC before Absorption starts. It will only do all that time it says there in Bulk if the charging amps are low and the battery bank is big.

If you are only charging on shore power, you have lots of time to do the recharge, but if you are doing it while camping running a generator, then you want to get it done quickly. Fast recharge means with the high amps, so you don't want it to drop to 14.2v and slow the recharge way down. You want to stay at 14.8 the whole time it takes to do your "50-90"

Understood. 14.4 wins out..

So riddle me this..

I have these 12volters on the sears charger. Charging 10 amp setting @15.4 volts and 4 amps going in. SG is now at 1.250.

Its been 2 hours.

Can I conclude any information from this?

Why wouldnt the PD put in the amps @ 14.4? I know you say about the false voltage so just trying to grasp it..

Im not trying to beat a dead horse..

Going 6 volt and seeing how they charge all these issues may go away so it probably will be a mute point.