Hi,
I am getting a bit confused with the amount of information I am trying to take in so I thought I would join the community for some guidance, so thank you in advance.
I am on a easy solar 1600 24v system, 2x Rolls 290a, 50 Charge controller.
When using the formula, I managed to calculate an absorption time of 46mins (rounded up to 1hr)
Does this sound right?
T = 0.38 x C /I
0.475 = 0,38 x 260ah / 208
If this is incorrect then where have I gone wrong? Also, if I am using adaptive charge then does this figure matter?
I also was confused regarding temperature compensation - I saw that the compensation should be set at -4mV/ºC/Cell - so i have set this at-32V/ºC - is this correct?
The system has a temperature sensor, how do I know that it is even working?
Could you also advise on the absorption and float voltages please?
After looking through the manuals I settled for -
Absorption Voltage - 29.40V
Float Voltage - 27.60V
Max Charge Current - 50A
Also, i set the system to 'charge only' when I got to bed, in the morning despite the batteries reading at 24.8+ the system wont turn on until there is a bit of sun to top up the charge, or i need to turn the gene on to allow a top up... It could be for 5 mins and the system turns back on again and doesn't seem to be lacking charge at all.. is there something I have accidentally mis-configured when I was using veconfigure? I've noticed Victron connect app is not a comprehensive as Veconfigure or am i missing something by plugging into the charge controller?
Please excuse the basic questions but I have already fried one set of these batteries in 3 years and it was an expensive mistake i can let happen again... trying my best to get studying again : )
Thanks,
Ash