I have a Battery Wirring dilema that I hope you can shed some guidance on.
I have two Batteries
1 Primary (Cat 880CCA) for starting the motor which is constantly connected.
2 Secondary Deep Cycle for Accesories (GPS, Radio, etc) and and lighting
They are wired in parallel with a Hella Heavy duty Master Switch part number 4720( Hella 4720 swich, Which has only on or off position. So that I can in an emergency if the primary battery fails I can use the Seconday battery to start the motor. (225 ETEC).
In your installation guide you have recomend a 3 pole switch having
And also a VSR BEP model 710-125A,
Can you please advise if it is okay to wire the batteries using the attached diagram and do I also need a Accessory Charge Lead Kit, P/N 5006253.
Are you trying to "combine" battery 1 and battery 2 using the on/off switch?
It would be helpful to know your engine model number, as the accessory charge lead is only used on V4 and V6 engine models.
Engine model number is E22DPXAA built in march 2013 .
Yes in an emegency were the main battery fails I want to be able to combine battery 1 and battery 2 using the on/off switch?
Other than in that I would like to leave the Primary battery for engine use only and the secondary for accesories.
Do I need the accessory charge lead and what is its purpose.
Your advise would be greatly appreciated.
You do NOT need the accessory charge lead. As I mentioned earlier it is designed for thre V4 & V6 engine models, which have built-ion battery isolation. The 15 thru 90 Hp inline engines do not have that feature.
I will confirm with our sources your proposed use for the battery switch, and report their recommendation some time tomorrow (Friday).
Hi Sam -
My apologies, I totally missed the (225 E-TEC) in your original post and the E22DPX threw me off to thinking "typo, he means 25 HP"...
Using a "1/both/2/off" switch is prefered, as there are benefits to disconnecting the batteries from the engine, but to answer your question: You can wire the charging system as you have diagrammed above, using the On/Off switch to combine the batteries. You do NOT need the accessory charge lead for this method.
If you have NOT yet purchased the BEP VSR, a simpler wiring method would be reference diagram #4 (diagram immediately to the right of the #2 diagram you modified), refer back to the installation guide.
In this case you could substitute your On/Off switch for the "1/both/2/off" switch and use the accessory charge lead to charge battery #2. This splits the charge capabilities at the engine and will always provide a full 25 amps to both batteries (assuming engine rpm is over ~2000). Where the VSR will not charge battery #2 until it senses battery #1 is fully charged.
If you have any additional questions, let us know.
Hope this helps, and again sorry for my confusion with the engine model at the beginning.
i have a 2012 150 etic model 150dplaa.
in the rigging manual it points to a connector location for the accessory charge connector. looking at my motoer i do not see aunused plug to hook into?
i have a jon boat with 3 batteries, 1 start batt, and to for my trolling motor.
i want to a battery switch like you suggested and add the accessary harness to charge the other two trolling batts. is this possible? i cannot find a diagram for a boat setup like mine? can you provide help here please?
08-31-2019 10:06 - edited 08-31-2019 10:07
Your motor has a connector for the accessory charging cable, however you cannot use it to charge a 24 volt system trolling motor. It can only be used on a separate 12 volt system such as for a house battery or a 12 volt system trolling motor battery.
"There is never just one thing wrong with a boat";
-- Travis McGee, main character in a book series by John D. McDonald
The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.
The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.