battery energy gauge help

[sylvain N]

hi every one i have problem to connect my battery energy gauge in my front panel for my trolling motor i upgrade my minn kota for a fortex 24v and my gauge cant read in 24v the gauge is read overload but if i put my wire back in 12 i got a reading i got a sratos 1985 and i have a swicth 12 24

what is the problem i need to read in 24v

 

[Silvertip]

Re: battery energy gauge help

You can't read 24 volts on a gauge designed to read 12 volts. Besides, reading 24 is no different than reading 12 volts twice (once for each battery). If you set the switch to 12 volts, the batteries should be placed in parallel so that's the only reading you need to be concerned about.

 

[sylvain N]

Re: battery energy gauge help

if i understand what you say i put my gauge on my wiring on 12v one of my two battery for 24v if thast ok what is gone tell me how many power left in the other battery

this is my set up only i dont have the yellow for 12v

 

[Silvertip]

Re: battery energy gauge help

Is there a RUN/CHARGE switch somewhere on the bow of your boat where the trolling motor plugs in? If there is, then set that switch to CHARGE. This is NOT the 12/24 switch on your motor. The RUN/CHARGE switch places the two batteries in parallel so the gauge will read the condition of both batteries simultaneously. If you don't have such a switch, you need to add a switch that lets you select viewing battery 1 or battery 2. This requires a six terminal ON-OFF-ON switch. I have a pencil drawing how to do this but I will post a "clean" drawing shortly.

 

[sylvain N]

Re: battery energy gauge help

yes i have a switch beside where i plug the motor but the switch have 12v top and 24v buttom

 

[Silvertip]

Re: battery energy gauge help

Do you know if that 12 volt setting "parallels" the two batteries or does only one battery get selected?

Here is a diagram of how I would set this up. If you are unfamiliar with electrical wiring then you are advised to let someone else wire it. But this diagram uses a SPDT On-Off-On switch to select Battery #1, Battery #2 or OFF. It would not interfer with any 24 volt operations.

 

[sylvain N]

Re: battery energy gauge help

yes i know that with the selecting swicht i can have the reading of each battery but can you read both at the same time this is the idea:redface: