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Battery voltage

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nvmycj
Posts: 11
Joined: 22 Jun 2019, 19:37

Battery voltage

Post by nvmycj »

Good day all!

When I turn on my battery, the voltage meter reads 12.2. Then with my LED’s and LED bar turn on, it drops to 11.2.

Just curious if that’s normal.

Thanks!
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DaleH
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Battery voltage

Post by DaleH »

Well your battery is only 50% charged, so I would say all bets are off until you find out if that battery is good or not. It doesn’t charge any higher than 12.4, the plates have sulfated. A good charged battery should be 12.7 or higher.
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senkosam
Posts: 50
Joined: 05 Aug 2019, 05:56

Battery voltage

Post by senkosam »

Agree. My voltmeter reads over 13v for a full charge.

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jethro
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Battery voltage

Post by jethro »

Image
I fish, therefore, I am.

1993 Starcraft SF 14 DLX side console with 25 hp Mercury 2 stroke
2003 Sylvan 2100 Profish walkthrough with 150 Mercury Saltwater and 6hp Mecury 4 stroke kicker

nvmycj
Posts: 11
Joined: 22 Jun 2019, 19:37

Battery voltage

Post by nvmycj »

DaleH wrote:
04 Aug 2019, 18:34
Well your battery is only 50% charged, so I would say all bets are off until you find out if that battery is good or not. It doesn’t charge any higher than 12.4, the plates have sulfated. A good charged battery should be 12.7 or higher.
Well crap!

I bought this thing several months ago and it's been in the back of the boat while I'm testing the wiring. Is it safe to assume that I should fully charge it and see what the voltage reads?

Thanks so much!!!

nvmycj
Posts: 11
Joined: 22 Jun 2019, 19:37

Battery voltage

Post by nvmycj »

jethro wrote:
05 Aug 2019, 11:39
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Thank you for this chart! It helped!!

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jethro
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Location: Henniker, NH

Battery voltage

Post by jethro »

Oh good, I'm glad! It's pretty handy.
I fish, therefore, I am.

1993 Starcraft SF 14 DLX side console with 25 hp Mercury 2 stroke
2003 Sylvan 2100 Profish walkthrough with 150 Mercury Saltwater and 6hp Mecury 4 stroke kicker

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