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The Combiner 100 is a voltage-sensing relay (13 volts) which connects two batteries together when either is receiving a charge.When the charging ceases, the relay opens so that each battery operates independently.UNLIMITED WARRANTYYou never have to worry about switching to "BOTH" when your engine is running and forgetting to switch back to save your starting battery from discharge when you stop.
T**Y
Great product.. works as advertised
Does charge trolling motor battery in addition to main battery. However, you will need to run your engine a lot for the trolling motor battery to be fully charged, particularly when trolling a lot... overall happy with the product, certainly prevents battery from full discharge during an extended outings.
D**F
Easy installation
Works as promised, use it on my rv and now my engine battery and house batteries are fully charged simultaneously! Easy installation
R**E
Great
Great item
A**R
Five Stars
Works great for having separate batteries. Keeps both charged even with my battery maintainer.
K**R
Good solution
Easy to install device to separate 2 boat batteries from discharge yet allow both to charge from the engine alternator.
A**E
Don't buy
Don't buy.. it's junk.. left me in the middle of the lake with two dead batteries
J**T
Five Stars
ok.
S**N
Four Stars
Would be nice if they supplied heat shrink connectors on these.
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