How To Wire In A NOCO Battery Charger To Two Batteries Wired In Parallel
Updated 07/23/2026 | Published 12/12/2023
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Question:
Which terminal do I connect my positive and negative charger cables to? I’ve attached photos of my batteries bank.
asked by: John L
Expert Reply:
It looks like your batteries are wired in parallel so the positive cable of the NOCO Genius Smart Battery Charger # 329-GENIUS10 can be ran to the positive post on one battery and the negative cable from the charger can be ran to the negative post on the same battery. This specific charger only comes with clamps instead of ring terminals so I recommend picking up the Replacement X-Connect Eyelet Terminals # 329-GC002 for a more secure connection to the battery bank.
(click to enlarge)
Mr S.
7/23/2026
Propane tank is same confined space as multiple electrical devices? This is alarming and a bad practice to show any newbies. Propane tanks are always located *outside* where any leak would dissipate. If there was any accident investigation and or insurance claim you'd be liable.
Product Page this Question was Asked From
NOCO Genius Smart Battery Charger - AC to DC - 6V/12V - 10 Amp
- Battery Charger
- Battery Charger
- ATV
- Boat
- Car/Truck/SUV
- Generator
- Jet Ski
- Lawn Mower
- Motorcycle
- RV/Camper
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- Trolling Motor
- 12V
- 6V
- Charges and Maintains
- Shore Power to Vehicle Battery
- Smart Charge
- Trickle Charge
- NOCO
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on Battery Charger
Dennis
4/21/2024
Hi Kevin, I've been told the proper way to use power from 2 batteries in parallel is to connect the positive lead to the positive on one battery and the negative to the negative post on the other battery. It would seem that if one is to charge this same system of 2 batteries in parallel that the above would apply also. If not could you explain why? Thanks Dennis