battery question on 8.1 horizons

dlfish702

New Member
Oct 8, 2009
21
puerto rico
Boat Info
360 Sundancer 2005
Engines
8.1 Horizon Mercruiser V drives
Hi Gang,
Went to start my 8.1's on my 360 Sundancer after not using the boat for 3 weeks. Port engine was tough to start and once started the batteries showed a voltage of 12.5 as opposed to 13.5 for starboard engine. She is in the water and using shore power to run battery charger. Battery cables are not corroded and distilled water added to top off both batteries a couple months ago.
My question is does this mean I need a couple new batteries for the port engine or are there other issues I should be looking at?
 
load test batteries and check your charger before you buy new batteries.
 

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