Forum Discussion

Veebyes's avatar
Veebyes
Explorer II
Apr 12, 2014

Battery surprise.

Yesterday I removed 2 group 31 gel cell batterys from my boat. They have been in it since 2003. The boat has not been used since 2006 but the batterys have had a charge from time to time up until 2012 when they were last topped off & put back in the boat.

They have been almost 18 months completely unattended. No maintainer charge. Nothing. Thought for sure that these 2 would be toast for sure, if not from neglect then from simple age which is now probably over 12 years from new.

One at a time the were put on a multi type, multi stage charger. One took overnight to recharge. The other only a few hours. Put a load tester on both. Both test almost as good as new recovering immediatly after load release.

There is something to be said for gel cell technology even if it is pricey.
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    Veebyes wrote:
    wa8yxm wrote:
    Group 31 GEL? Who makes a Group 31 GEL?

    That is a very odd size for a Gel Cell battery.. Common though in AGM's.


    Well, the first ones the boat had apparently came from Sears. This was 1998 & they were Die Hards. Got 10 years out of them with some pretty hard use. Believe Lifeline has them. No doubt there are others.

    Don't know why RV manufacturers don't provide space for a pair of group 31s or even a single 8D. A pair of group 24s is not much use.


    Agreed on the Group 24's being of "not much use" but a pair of GC-2 fit in about the same footprint, Just a bit taller, and are the equal of that 8 D with the weight divided between two boxes so it's easier to wrangle.

    page 2.... Those Die Hards.. ARE AGM, not Gel, Sears has been selling AGM a long time under the die easy label. I am very surprised you got that kind of life out of a Die Hard.. Very rare.
  • Veebyes wrote:
    noe-place wrote:
    I have a number of friends in a Corvette club that use that type of battery. Some of them love them and some of them hate them. I guess it's good when a product works and bad when it doesn't.


    Why would they want to use gels in an automotive application? They are not good starting batterys. I needed to have a minimum of 2 to roll my 5.9 Cummins.

    Of the 3 main types the gel cell is the least desirable mainly because of voltage needs in charging. They are great 'house' batterys, provided your charger is set properly. AGMs are usually more popular as they exibit the good qualities of the wet cell as well as the gel cell.

    The gel cell will take abuse too other than neglect. I had my alternator regulator go bad in the boat & it was putting over 18V into the batterys for a few weekends use before I got it repaired.

    These two will be added to my 'hurricane preparedness' plans. I have a genny but I also have a small 1000W inverter for powering small household needs plus I have some 12V needs like my ham VHF radio, weather station & some 12V light fixtures salvaged from here & there. You can't be running a genny outside at the height of a storm.


    I don't like them myself nor have I ever used them. I was only reporting that some people like Optima batteries
  • wa8yxm wrote:
    Group 31 GEL? Who makes a Group 31 GEL?

    That is a very odd size for a Gel Cell battery.. Common though in AGM's.


    Well, the first ones the boat had apparently came from Sears. This was 1998 & they were Die Hards. Got 10 years out of them with some pretty hard use. Believe Lifeline has them. No doubt there are others.

    Don't know why RV manufacturers don't provide space for a pair of group 31s or even a single 8D. A pair of group 24s is not much use.
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    Group 31 GEL? Who makes a Group 31 GEL?

    That is a very odd size for a Gel Cell battery.. Common though in AGM's.
  • I have had many neglected ATVs come in for service where the wet cell battery was dry and only had a couple of volts. Add water and charge and they are good to go.
    I know many folks think a sealed AGM battery is a gel cell, that's where the confusion comes in.
  • noe-place wrote:
    I have a number of friends in a Corvette club that use that type of battery. Some of them love them and some of them hate them. I guess it's good when a product works and bad when it doesn't.


    Why would they want to use gels in an automotive application? They are not good starting batterys. I needed to have a minimum of 2 to roll my 5.9 Cummins.

    Of the 3 main types the gel cell is the least desirable mainly because of voltage needs in charging. They are great 'house' batterys, provided your charger is set properly. AGMs are usually more popular as they exibit the good qualities of the wet cell as well as the gel cell.

    The gel cell will take abuse too other than neglect. I had my alternator regulator go bad in the boat & it was putting over 18V into the batterys for a few weekends use before I got it repaired.

    These two will be added to my 'hurricane preparedness' plans. I have a genny but I also have a small 1000W inverter for powering small household needs plus I have some 12V needs like my ham VHF radio, weather station & some 12V light fixtures salvaged from here & there. You can't be running a genny outside at the height of a storm.
  • I have a number of friends in a Corvette club that use that type of battery. Some of them love them and some of them hate them. I guess it's good when a product works and bad when it doesn't.
  • You do know what happens as soon as you start bragging.

    SHHHHHHHHHHHHHH

About RV Tips & Tricks

Looking for advice before your next adventure? Look no further.25,103 PostsLatest Activity: Jan 21, 2025