โFeb-26-2020 05:59 PM
โFeb-29-2020 04:56 PM
โFeb-29-2020 09:13 AM
โFeb-29-2020 08:22 AM
mchero wrote:
Thanks for the reply Mex. Hope you get back to a laptop shortly.
Batteries 3 and 4 were not fully charged. The cable between them was replaced (Positive posts in upper right). I'm planning to remove the negative cable on battery 3, that should isolate 3 and 4 from the bank. Then I will either charge 3 and 4 individually (6v) or as a pair (12v).
I'll use the 5 amp charger posted below.
Noco 5 amp
200 amp shunt is for my Midnight Solar Classic WizBangJr.
Thoughts/Suggestions?
โFeb-29-2020 07:37 AM
โFeb-28-2020 12:40 PM
โFeb-28-2020 12:33 PM
โFeb-28-2020 12:30 PM
โFeb-28-2020 11:02 AM
Chum lee wrote:
Just a question. Where does this 300 amps (charging) come from for continuous use? Very few automotive type alternators will produce 300 amps, (@14 volts) continuous, for battery charging purposes. IME, when solenoids/relays regularly fail, it's because they get too hot. That can be a result of small wire size on the signal circuit, or, too much resistance on the main load (switched/charging) circuit.
When you say the solenoid is warm, . . . . . how warm is it? Too hot to touch?
Chum lee
โFeb-28-2020 10:46 AM
fourthclassC wrote:
Been through this one each rv I have owned. Trombetta is worthless in my opinion. I suggest 2 possibilities. NAPA continuous duty solenoid. Need a good counter person to help look it up.... or how about a properly rated solid state isolator? no moving parts and they worked good for me.
โFeb-28-2020 10:38 AM
โFeb-28-2020 09:36 AM
โFeb-27-2020 07:45 AM
โFeb-27-2020 06:37 AM
maillemaker wrote:If its purpose is to isolate the house batteries from the starting batteries during cranking and when the engine is OFF, it will only be ON when the engine is running and you are trying to charge the house batteries from the engine. I am certain that your engine alternator can not generate anything near 300A !
In my RV, there is a momentary switch option to gang the house batteries to the engine batteries during cranking, so that the house batteries provide an emergency jump start if the engine battery is dead.
I think engine starters can pull 200-500A if I'm googling correctly.
โFeb-27-2020 06:31 AM
โFeb-27-2020 06:18 AM
If its purpose is to isolate the house batteries from the starting batteries during cranking and when the engine is OFF, it will only be ON when the engine is running and you are trying to charge the house batteries from the engine. I am certain that your engine alternator can not generate anything near 300A !