Meltdown averted, but only just

luvrbus · August 07, 2018, 12:00:32 PM

Depends on where you live the group 29's are light on cranking amps mine say 675 CCA for my generator from WM,the group 31's are around 950 CCA from Sams,the guy told me he paid around 100 bucks ea for 31's at Sam's we were replacing his group 24's with

Iceni John · August 07, 2018, 12:08:41 PM

Quote from: Fred Mc on August 07, 2018, 10:45:32 AM
Sounds like you morningstar charge controller screwed up.Do you have a temp probe hooked up to it.It should have sensed a higher temp and stopped charging.

I hadn't put the temperature sensors on the 8Ds because they don't fit their posts, only 3/8" threaded studs. They'll definitely be going on the new golfcart batteries, along with the voltage sensor wires, then I'll get really accurate charging.

John

Geoff · August 07, 2018, 12:46:00 PM

Quote from: luvrbus on August 07, 2018, 12:00:32 PM
Depends on where you live the group 29's are light on cranking amps mine say 675 CCA for my generator from WM,the group 31's are around 950 CCA from Sams,the guy told me he paid around 100 bucks ea for 31's at Sam's we were replacing his group 24's with

No, on the Group 29 they are rated at 845 Marine cranking amps, but they are combination start and deep cycle batteries that is why they are heavier than the Group 31's, same size, just the posts are different. A better battery than a Group 31.

Oonrahnjay · August 07, 2018, 12:52:09 PM

Quote from: Geoff on August 07, 2018, 12:46:00 PMNo, on the Group 29 they are rated at 845 Marine cranking amps, but they are combination start and deep cycle batteries that is why they are heavier than the Group 31's, same size, just the posts are different. A better battery than a Group 31.

What style posts are they, Geoff?

luvrbus · August 07, 2018, 01:13:17 PM

That is a group 29DC Geoff with the 2 styles of post for marine use ? do they still sell that battery ? MCA are measured at 32F degrees not 0 like CCA

Geoff · August 07, 2018, 01:20:53 PM

The Walmart Group 29's use a combination solid post and a 5/16" threaded post. Group 31's use a 3/8" threaded post.

I recently put a pair of the 29's in a 4104. Worked out fine, good cranking power. It seems Walmart sells the same exact battery for $89 with a one year warranty, or for $99 you get a two year warranty.

sledhead · August 07, 2018, 01:56:00 PM

are they like these

https://www.walmart.com/ip/Everstart-Maxx-Lead-Acid-Marine-RV-Battery-Group-29DC/131118029

dave

Geoff · August 07, 2018, 02:42:32 PM

I used to buy Interstate 31's from Sam's Club along with golf cart batteries, but they closed the Sam's here and several others in AZ , but they had changed brands anyway and now sell Duracell, which I don't like.
Costco sells Interstate now, up to a Group 27; so that is when I started buying Walmart batteries. I even bought a couple of their Value batteries @$49 and have no complaints.

DoubleEagle · August 07, 2018, 06:50:25 PM

I just bought two 950 CCA (at 0 degrees F) 31's for $90 each at Truck Pro (they are in 33 states), house brand, made by Deka. (1000 CCA's are $100) Virtually all batteries are made by Exide, Johnson Controls, or Deka. The 31's from Batteries Plus have M10 studs, which don't work well with 3/8" nuts. The 31's from Exide don't have a handle, just finger grips.

luvrbus · August 08, 2018, 06:42:51 AM

Quote from: DoubleEagle on August 07, 2018, 06:50:25 PM
I just bought two 950 CCA (at 0 degrees F) 31's for $90 each at Truck Pro (they are in 33 states), house brand, made by Deka. (1000 CCA's are $100) Virtually all batteries are made by Exide, Johnson Controls, or Deka. The 31's from Batteries Plus have M10 studs, which don't work well with 3/8" nuts. The 31's from Exide don't have a handle, just finger grips.

Ask for a strap they will give one free Walter,I buy post type 31's and use the military post connectors then you don't fight getting all the connections on a battery stud ,only the military would use the post type batteries with stud type cables but the connectors are neat.If the time comes when you can only get the stud type battery just remove the post terminal connector and connect the cables to the stud a 2 in 1 deal the military came up with

chessie4905 · August 08, 2018, 06:47:32 AM

Ace hardware or Lowes have SS metric nuts

Oonrahnjay · August 08, 2018, 07:35:45 AM

Quote from: Geoff on August 07, 2018, 01:20:53 PMThe Walmart Group 29's use a combination solid post and a 5/16" threaded post. Group 31's use a 3/8" threaded post. ...

Thanks, Geoff. Good to know.

DoubleEagle · August 08, 2018, 07:46:54 PM

Quote from: luvrbus on August 08, 2018, 06:42:51 AM

Ask for a strap they will give one free Walter,I buy post type 31's and use the military post connectors then you don't fight getting all the connections on a battery stud ,only the military would use the post type batteries with stud type cables but the connectors are neat.If the time comes when you can only get the stud type battery just remove the post terminal connector and connect the cables to the stud a 2 in 1 deal the military came up with

I have the military style connectors and used them on 8D's, but they take up a lot of space that is not always available and require a large molded cover to keep them safe, but you are correct, they give you a lot of room for multiple cables. I like the the screw post type because they are quicker to hook up and disconnect (and they remind me of all the happy days with trucks).

(I forgot to add that I would be more likely to get a free strap if I told them I knew you)