Battery cut off switch
I just bought one like the one in the picture below. Should I install it on the positive terminal or the negative and why? I run two 12V group 27s in parallel.
Forum Discussion
Where I work we have a number of diesel gensets. 100KW up to 1MW, they are rotated around as needed as emergency units. They all have (with the exception of the 1MW units) a welding cable quick disconnect on the NEGATIVE cable. The 1MW units have a rotary switch that cuts out all the electronics except the maintenance charger.
If you read how to disconnect/replace a battery or jump start a vehicle.. Connect POS first, NEG last. Disconnect NEG first, POS last. As was stated earlier, this is to prevent sparks. If you are concerned about forgetting to connect the battery before towing, hang a flag on the breakaway cable that says "CONNECT BATTERY BEFORE CONNECTING BREAKAWAY CABLE!" Personally, I test the breakaway before moving the rig. Just my .02.
MikeH
If you read how to disconnect/replace a battery or jump start a vehicle.. Connect POS first, NEG last. Disconnect NEG first, POS last. As was stated earlier, this is to prevent sparks. If you are concerned about forgetting to connect the battery before towing, hang a flag on the breakaway cable that says "CONNECT BATTERY BEFORE CONNECTING BREAKAWAY CABLE!" Personally, I test the breakaway before moving the rig. Just my .02.
MikeH
