yammy 60 4 stroke battery charging

[pappy]

hi i have a yammy 60 4 stroke .when i start a day boating with a fully charged battery the volte meter showes 13.2 to 13.5 volts at idle but go up to 14.8 volts above 4500 rpm should the volts be that high.thanks

[helliconia]

Perfectly normal pappy, mine does exactly the same.

It means your alternator is working correctly, generating more than the engine is using.

[pappy]

will high volts like that harm the battery .

[helliconia]

Not at that level, they need a slightly higher voltage being fed in to get and maintain a charge.

14-15 volts while running is very normal. I'd be more worried if it dropped to 13 volts while running.

[pappy]

thanks for your reply .

[Guest Aussie007]

papay some new batterys have 14.8volts on the battery sticker so its all good mine goes up to 16volts while driving according to my fish finder voltage

[cheap charlie]

Some deep cycle batteries are only suitable to be charged at 14.4V or less and will vary from different manufacturers.

If your battery is just a conventional lead acid unit then 14.8v is fine. When recharging a battery at home, most smart chargers will charge at 14.8v

[pappy]

had a look at sticker on battery 14.8 max so all good .thanks for replys