Thread: Charger advice
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Old 05-13-2015, 09:41 AM   #10
READY2GO
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City: Marathon, Florida
Vessel Name: Walkabout
Vessel Model: 1989 Sea Ray 380 Aft Cabin
Join Date: Jan 2012
Posts: 521
Speaking of battery chargers, does anyone know of a charger that will charge 3 banks and have an adjustable charge rate?

We have a TrueCharge2 40 amp charger and two house banks of 4 Trojan T 105s each and a start bank of 2 group 27s. The problem is that when we have 3 or 4 overcast days in a row I like to run the genset to top off the batts (we have solar). It will charge at 100% output for a very short time then drop to 80 for a short time, then 60, then 40 and so on. It stays the longest at 40 and almost forever when it gets to 20% output. My understanding (maybe I am wrong) is that the golf cart batteries can take a high charge to about 80% charged before needing to step down the charge rate.

I feel like I am being shortchanged buying a 40 amp charger that takes forever to charge the batts because it steps down the charge rate too quickly.
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