This is basically a good old on/ off controller constant current
controller like the venerable c30, only it is NOT adjustable. It is
not a constant voltage controller, PWM, etc. It IS very reliable.
From the manual: Charge termination volts is 14.2 volts, charge
resumption voltage is at 12.8.
I can mail you the manual if you need, I have an extra copy. Hardly
any useful info, other than what I've related, IMHO.
I've used these with sealed batteries, but I use B&B brand, and this
voltage is within their recommended charge voltage range. Other sealed
batteries might need lower voltage set points.
Also, it depends if it is being used in float service, or actual cycle
service. B&B recommends a lower voltage(13.7) for constant float
service.
Third, sealed batteries are very finicky about maximum charge current,
too. Lower array current might work with this controller, and a higher
amp array might be too much, and you should go to something more
sophisticated.
R. Walters
[email protected]
Solar Engineer
On Oct 13, 2009, at 1:59 PM, Randy Brooks wrote:
Fellow Wrenches,
Does anyone have a manual for an old Shell Solar RV20 PV charge
controller? Or know where I can get a copy. I searched the web
without success. I'd like to know if the charge settings are
adjustable for sealed batteries.
Thanks,
Randy Brooks
Brooks Solar, Inc.
Solar Power for People
140 Columbia View
Chelan, WA 98816
509-682-9646
[email protected]
www.BrooksSolar.com
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