2018 R-29S battery replacement

[wcook]

I am having a marina help with installing replacement batteries.
However, could you please assist so I order the correct replacement batteries.
It looks like the four house batteries are UPG Universal UB121100k.
I cannot see the front of the engine battery or the thruster battery to confirm if all six batteries are the same.

 

[Kevin Lamont]

I am having a marina help with installing replacement batteries.
However, could you please assist so I order the correct replacement batteries.
It looks like the four house batteries are UPG Universal UB121100k.
I cannot see the front of the engine battery or the thruster battery to confirm if all six batteries are the same.

Hello,

They should all be the same, there should be screws that hold down the white plastic board. Recently I helped a customer and we cut a access hole under the cockpit fridge to make it easier to disconnect and reconnect. You can cut a big enough hole to even remove and install a battery. Covered with some starboard and reinstalled the fridge, make it real slick!! Hope this helps.

Thanks,

 

[wcook]

Thanks, we are about to order the batteries. I am unable to find/order the exact replacement #UB121100k.
Not sure why, however, I can order UB121100 without the "k" at the end, which are Group 30H batteries.
Please confirm, are the original UB121100k batteries in this 2018 R29S Group 31 or Group 30H batteries?

 

[Cutwater28GG]

i believe the letter dictates the type of connector on the top. Amazon has them... https://www.amazon.com/gp/product/B0088L5AKS/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1