Charging 98 Johnson 115 ?

B

Balder

Contributing Member

• Jan 5, 2017

• #1

How many Volt should i minimum see at the instrument on 1998 Johnson 115 at idle ? (About 800rpm)

 

J

johnnygjr

Outstanding Contributor

• Jan 5, 2017

• #2

12-12.6

 

B

Balder

Contributing Member

• Jan 5, 2017

• #3

Thanks to you.

 

R

racerone

Gold Medal Contributor

• Jan 5, 2017

• #4

A fully charged battery will show 12.4 to 12.6 volts.----At a fast idle you should be seeing 13.5 volts.

 

B

Balder

Contributing Member

• Jan 5, 2017

• #5

Then i know why my battery over time die, when i use it for fishing (trolling) i have only 12-12,5volt.

 

B

Balder

Contributing Member

• Jan 5, 2017

• #6

What need to be replased to get it like new ?

 

J

johnnygjr

Outstanding Contributor

• Jan 5, 2017

• #7

The ignition system does not use the battery when trolling,your accessories use the battery,fishfinder,radio,lights,vhf,bilge pump,etc

 

J

johnnygjr

Outstanding Contributor

• Jan 5, 2017

• #8

Are you running more than one battery? A starting battery and a deep cycle with a battery isolator switch

 

B

Balder

Contributing Member

• Jan 5, 2017

• #9

I have only one 70amp battery.
Possible for you to explain "deep cycle with a battery isolator switch" to a man who only use the boat and not have mutch experience with outboard......

 

B

Balder

Contributing Member

• Jan 5, 2017

• #10

Do you mean one main battery and one battery for trolling ?

 

J

johnnygjr

Outstanding Contributor

• Jan 5, 2017

• #11

A deep cycle battery is a lead acid battery,designed to be regularly deeply discharged using most of it's capacity, In contrast,a starter battery[e.g. most auto batts.]are designed to deliver short bursts for cranking the engine,thus frequently discharging only a small part of their capacity. A deep cycle battery uses thicker plates. Balder yes one for starting and one for everything else

 

B

Balder

Contributing Member

• Jan 5, 2017

• #12

No i understand, thank you for your advice.