# Battery, charger and turtle mode problems **URL:** \ **Category:** GEM Forum\ **Created:** [December 26, 2019, 3:22pm UTC](https://community.electricforum.com/t/battery-charger-and-turtle-mode-problems/17763 "2019-12-26T15:22:50Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Tom13](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/tom13/32/5940_2.png) [@Tom13](https://community.electricforum.com/u/Tom13)\ **Post date:** [December 26, 2019, 3:22pm UTC](https://community.electricforum.com/t/battery-charger-and-turtle-mode-problems/17763/1 "2019-12-26T15:22:50Z")
I just picked up a 2013 gem E4. It has new batteries and the charger is not working correctly, I charged the batteries with large car charger. The battery gage on the cart says they never charged? And it stays in turtle mode. I also looked at the charger on the cart and it first blinked twice and I looked again and it just a steady blink? I have no idea if the batteries were installed correctly but I did change the cable to each one because they were poorly done. Any help will be appreciated. Tom ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [December 26, 2019, 7:32pm UTC](https://community.electricforum.com/t/battery-charger-and-turtle-mode-problems/17763/2 "2019-12-26T19:32:00Z")
Car will stay in turtle mode until it completes a charge cycle. Count the blinks for an error code. 1 is temperature sensor. 2 is low (or high) battery. ---
**Author:** ![Tom13](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/tom13/32/5940_2.png) [@Tom13](https://community.electricforum.com/u/Tom13)\ **Post date:** [December 26, 2019, 8:18pm UTC](https://community.electricforum.com/t/battery-charger-and-turtle-mode-problems/17763/3 "2019-12-26T20:18:01Z")
Thank you I will give that a try tonight. Can you tell me where the temp sensor is located? I also noticed two wires in the main harness coming fro the front back to the batteries that are not hooked up? They are hot too? both are yellow and I think they one has a blue stripe and the other I believe has a brown stripe?? ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [December 27, 2019, 12:31am UTC](https://community.electricforum.com/t/battery-charger-and-turtle-mode-problems/17763/4 "2019-12-27T00:31:11Z")
Yes, that’s the temp. sensor. It should be under one of the battery terminal bolts. It looks like a big wire lug.