# Need some advise about a 2015 E-4 Batteries please **URL:** \ **Category:** GEM Forum\ **Tags:** gem, batteries\ **Created:** [July 17, 2024, 1:49pm UTC](https://community.electricforum.com/t/need-some-advise-about-a-2015-e-4-batteries-please/28094 "2024-07-17T13:49:27Z")\ **Posts on this page:** 5\ **Page:** 2
**Author:** ![Tusk](https://avatars.discourse-cdn.com/v4/letter/t/4af34b/32.png) [@Tusk](https://community.electricforum.com/u/Tusk)\ **Post date:** [July 21, 2024, 4:33am UTC](https://community.electricforum.com/t/need-some-advise-about-a-2015-e-4-batteries-please/28094/21 "2024-07-21T04:33:06Z")
Not even sure where that explination is…should I put the kill switch to off, while I troubleshoot this? ---
**Author:** ![JarJarJava](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/jarjarjava/32/15158_2.png) [@JarJarJava](https://community.electricforum.com/u/JarJarJava)\ **Post date:** [July 21, 2024, 10:19am UTC](https://community.electricforum.com/t/need-some-advise-about-a-2015-e-4-batteries-please/28094/22 "2024-07-21T10:19:00Z")
> [@JarJarJava](#): > > US Batteries are industrial flooded lead acid or AGM batteries. Not as beefy as a Trojan, but close U̶s̶e̶ t̶h̶e̶ #̶1̶5̶ a̶l̶g̶o̶ f̶o̶r̶ t̶h̶e̶m̶. Use #13 Trojan profile for “big” flooded or AGMs. Like the ones you bought. > [@JarJarJava](#): > > Use #13 Trojan for Trojan, US Battery & Crown flooded lead acid & AGM batteries. > > #32 is for other FLA and AGM. Like Intersta, East Penn Dekka, Duracel, O’Reilly, Wal-Mart, NAPA, etc… A few posts up… ---
**Author:** ![Tusk](https://avatars.discourse-cdn.com/v4/letter/t/4af34b/32.png) [@Tusk](https://community.electricforum.com/u/Tusk)\ **Post date:** [July 21, 2024, 2:39pm UTC](https://community.electricforum.com/t/need-some-advise-about-a-2015-e-4-batteries-please/28094/23 "2024-07-21T14:39:47Z")
Should I have the kill switch off while I troubleshoot the re-programing of the batt charger? ---
**Author:** ![AssyRequired](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/assyrequired/32/7621_2.png) [@AssyRequired](https://community.electricforum.com/u/AssyRequired)\ **Post date:** [July 21, 2024, 4:26pm UTC](https://community.electricforum.com/t/need-some-advise-about-a-2015-e-4-batteries-please/28094/24 "2024-07-21T16:26:47Z")
It is a general rule and good idea to Batt MainSwOFF whenever you are not using the cart. When that switch is ON, the DC Converter is active and using a little bit of power. However, the MainSW needs to be ON for the charger to see the battery in order for it to charge. Technically, you can use the charger to initially throw a bunch of amps into your batteries no matter what it is set to, just don’t leave it charging for hours. Where the damage to a battery would occur is at the top end of a charge cycle. I would rather see new batteries run up and checked for balance (which most people do not do), than let them continue to sit. ---
**Author:** ![Tusk](https://avatars.discourse-cdn.com/v4/letter/t/4af34b/32.png) [@Tusk](https://community.electricforum.com/u/Tusk)\ **Post date:** [July 21, 2024, 8:56pm UTC](https://community.electricforum.com/t/need-some-advise-about-a-2015-e-4-batteries-please/28094/25 "2024-07-21T20:56:16Z")
Ok thanks for that…I am going to a local golf cart shop tomorrow, because I am not going to be able to re-program this batt charger myself. I’v got the main batt switch off until then, as I do not want to damage, in any way, these new batt’s. I’m hoping this place can do a house call to re-program this batt charger. thanks again for all your insight. [Previous page](https://community.electricforum.com/t/need-some-advise-about-a-2015-e-4-batteries-please/28094.md?page=1)