# Best 72v Battery % Display for 99-04 Gems? **URL:** \ **Category:** GEM Forum\ **Created:** [January 23, 2023, 7:40pm UTC](https://community.electricforum.com/t/best-72v-battery-display-for-99-04-gems/25736 "2023-01-23T19:40:51Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Ahayes488](https://avatars.discourse-cdn.com/v4/letter/a/0ea827/32.png) [@Ahayes488](https://community.electricforum.com/u/Ahayes488)\ **Post date:** [January 23, 2023, 7:40pm UTC](https://community.electricforum.com/t/best-72v-battery-display-for-99-04-gems/25736/1 "2023-01-23T19:40:51Z")
Hi All, Does anyone recommend a battery display that I can DIY into the dash of my gem’s? I installed a 72v display which correctly displays voltage but does not accurately show battery %. All of my gems are 72v, lead battery set-ups. Please let me know if there’s any preferred product! Thank you! ---
**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:** [January 23, 2023, 9:06pm UTC](https://community.electricforum.com/t/best-72v-battery-display-for-99-04-gems/25736/2 "2023-01-23T21:06:57Z")
> [@Ahayes488](#): > > does not accurately show battery %. There is no such display. ---
**Author:** ![LithiumGods](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/lithiumgods/32/672_2.png) [@LithiumGods](https://community.electricforum.com/u/LithiumGods)\ **Post date:** [January 23, 2023, 9:26pm UTC](https://community.electricforum.com/t/best-72v-battery-display-for-99-04-gems/25736/3 "2023-01-23T21:26:46Z")
what year gem? what is wrong with the factory gauge? ---
**Author:** ![Ahayes488](https://avatars.discourse-cdn.com/v4/letter/a/0ea827/32.png) [@Ahayes488](https://community.electricforum.com/u/Ahayes488)\ **Post date:** [January 23, 2023, 9:34pm UTC](https://community.electricforum.com/t/best-72v-battery-display-for-99-04-gems/25736/4 "2023-01-23T21:34:44Z")
I have a 2001, 2002 x2, and a 2003. Factory gauge hasn’t been the most accurate and would like to incorporate a digital display like the following: > **[Amazon.com: Battery Monitor, DROK 10-100V Digital Battery Capacity Tester,...](https://www.amazon.com/DROK-Battery-Monitor-10-100V-Celsius/dp/B09QXB9H2D)** > > Buy Battery Monitor, DROK 10-100V Digital Battery Capacity Tester, Percentage Level Voltage Temperature Switch Meter Gauge 12V 24V 36V 48V LCD Display Marine RV Battery Power Indicator Panel: Industrial & Scientific - Amazon.com ✓ FREE DELIVERY... I had to ask and see if there were any preferred displays first! ---
**Author:** ![LithiumGods](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/lithiumgods/32/672_2.png) [@LithiumGods](https://community.electricforum.com/u/LithiumGods)\ **Post date:** [January 23, 2023, 10:13pm UTC](https://community.electricforum.com/t/best-72v-battery-display-for-99-04-gems/25736/5 "2023-01-23T22:13:47Z")
None I have heard of. ---
**Author:** ![dougl](https://avatars.discourse-cdn.com/v4/letter/d/b19c9b/32.png) [@dougl](https://community.electricforum.com/u/dougl)\ **Post date:** [January 23, 2023, 10:40pm UTC](https://community.electricforum.com/t/best-72v-battery-display-for-99-04-gems/25736/6 "2023-01-23T22:40:27Z")
Battery voltage is pretty good but only after it’s settled a bit. Here is a good estimate and just multiply the voltage by 6 to get your total battery pack voltage. And maybe measure each battery every 4 months to be sure they are all staying balanced(close to each other in voltage). You don’t want to go below 12.0V( 72.0V ttl ) after it has rested for a few minutes. If while driving you see it go under 72.0V it would be ok but that should also be an indication you’re very low on charge and likely should only be a mile or so from home/charging. ![Voltmeter Chart -Right Mouse button to save it to your RV's laptop](https://www.rvtechlibrary.com/images/voltchart.gif) ---
**Author:** ![MikeKC](https://avatars.discourse-cdn.com/v4/letter/m/90ced4/32.png) [@MikeKC](https://community.electricforum.com/u/MikeKC)\ **Post date:** [January 27, 2023, 12:56am UTC](https://community.electricforum.com/t/best-72v-battery-display-for-99-04-gems/25736/7 "2023-01-27T00:56:00Z")
> [@Ahayes488](#): > > [https://www.amazon.com/DROK-Battery-Monitor-10-100V-Celsius/dp/B09QXB9H2D](https://www.amazon.com/DROK-Battery-Monitor-10-100V-Celsius/dp/B09QXB9H2D) I have used this one before, it fact I have one in my current 2016. It works, I have not measured the accuracy but it does have some nice features like being able to set the high and low battery values (like 99v and 75v) so the percentage left before empty is accurate.