Very Inexpensive Battery Maintenance Charger
1.0 ampere output. 13.8 volts regulated charge limit. This unit is good for 100 amp hours worth of batteries. IMO the voltage is a tad high for a high antimony RV battery with temps 60F or higher but ...
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The junior model Deltran maintainer is $25 a whack. I jump the two 12 volt batts together on the Z turn and other lawn tractor, hook one up and they both start like new in the spring.
