270 batteries and shore power
rasbury
Member Posts: 8,417 ✭✭✭✭✭
Have out our boat in a slip and want to replace the batteries. But that means it's in the water with no power for the pumps. Now I should be able to swap out but if something goes wrong with the plan..not that this would ever happen..anyway, does that run on shore power also? Seems like when I had the motor out, I was able to run the hatch off shore...lights and stuff I think? Also, with the batteries out and shore power on, are those terminals "hot"?
And not to re hash the battery type question, the last batteries I think I bought at auto zone and that was some time ago.
And not to re hash the battery type question, the last batteries I think I bought at auto zone and that was some time ago.
Comments
I just did two 6V batteries this time when I changed out the single house battery. Might be worth it especially if you don't have a generator. I have a generator but like to use the batteries over listening to it run.
I can't completely remember when I had mine out but I think the 12V systems still had power.
Safest bet: bring new batteries to the boat, and swap them one at a time. Then take the old ones back to the store for the core refund. That way, you'll only be disconnected for a few minutes at most.
Also, get a cable/battery cleaning brush and give the cable ends a good going over, and when you get the new batteries get a small tube of di-electric grease and coat the posts well.
2018 Cherokee 39RL Land Yacht (Sorry...)
2018 Cherokee 39RL Land Yacht (Sorry...)
Dream 'Inn III -- 2008 400 Express
2018 Cherokee 39RL Land Yacht (Sorry...)
Go Steelers!!!
I was looking on batter plus site and they talk about a BMI group?? Seems like the industry makes this more complicated than it should be!
Here is BCI size list
BCI Battery Group Size Chart
Knowing the exact BCI group battery size helps to find new battery replacement, however, knowing just BCI group size is often not enough.
Batteries also differ by their:
- purpose: starting, dual-purpose, deep cycle,
- cell type: AGM, gel cell, flooded cell,
- chemistry: lead-acid, NiCd, NiMH, lithium, etc.
Other important information includes details like terminals number, type, and orientation, battery maintenance, housing material, etc.
Knowing all this information significantly helps to find proper battery replacement.
The most common battery groups and their dimensions in inches and centimeters are:
When replacing the old battery with the new one, be sure that the new one is of the same chemistry as the old one (or it is a verified "drop-in replacement" battery) and that it has the same or better electrical features