# Switched to Big Battery 72 volt Falcons **URL:** \ **Category:** GEM Forum\ **Created:** [March 28, 2023, 5:53pm UTC](https://community.electricforum.com/t/switched-to-big-battery-72-volt-falcons/26110 "2023-03-28T17:53:36Z")\ **Posts on this page:** 1\ **Showing post:** 8
**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:** [March 29, 2023, 8:26am UTC](https://community.electricforum.com/t/switched-to-big-battery-72-volt-falcons/26110/8 "2023-03-29T08:26:44Z")
Here you go, follow Mike’s directions here, they should be good for gems with T3, T4 or T5 controllers. 05s had T3s > [@2008 GEM display shows no charge](https://community.electricforum.com/t/2008-gem-display-shows-no-charge/25242/2): > > It is possible that something is wrong, but first try what @AssyRequired posted in another thread (there are lots of threads about charging, did you search?) If you have never reset the SOC indicator it just may need recalibrating. Resetting the SOC meter should be done when your pack has finished it’s charge cycle. Verify by plugging in the car and making sure your charger fully goes to green light (on the CHARGER Display, not the dash display). Do you know where that is? You can reset the m… --- _[View the full topic](https://community.electricforum.com/t/switched-to-big-battery-72-volt-falcons/26110)._