Maintenance Charging Trailer Batteries Using An Isolation Solenoid

Updated 04/11/2017 | Published 04/10/2017

Products Featured in This Question

Starter Solenoid - SPST - 12 Volt - 100 Amp - Continuous Duty - Grounded

(14)

$37.35

NOCO Genius Smart Battery Charger - AC to DC - 6V/12V - 5 Amp

(171)

$69.95

Question:

I purchased the battery isolation solenoid so I could connect our camper battery to the 7-way plug on our truck. When I was getting ready to install the wiring it dawned on me that I had different types of batteries between the truck and the camper. In the camper I have two deep cycle AGM batteries wired in parallel and in the truck I have a standard flooded lead-acid battery. Is this acceptable to wire these for the maintenance charge? FYI during periods of non-use I installed an AGM battery trickle charger inside the camper to maintain the charge on the batteries.

asked by: Stephanie L

Helpful Expert Reply:

Yes. The difference in battery styles doesn't matter for you to use the Battery Isolation Solenoid # PK5231201 to give you a maintenance charge on your trailer batteries while connected.

When disconnected from your tow vehicle for long periods, I recommend using a battery tender/maintainer like the NOCO Genius Mini # 329-GENIUS5 versus a trickle charger on those batteries to make sure your trailer is ready for use when you are ready to camp. This unit uses a multi-stage charging algorithm that charges batteries 2 times faster than traditional chargers without overcharging.

expert reply by: Jason S