# Charging batteries individually

**URL:** <https://community.electricforum.com/t/charging-batteries-individually/4512>\
**Category:** GEM Forum\
**Created:** [October 8, 2014, 3:29pm UTC](https://community.electricforum.com/t/charging-batteries-individually/4512 "2014-10-08T15:29:59Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![4826](https://avatars.discourse-cdn.com/v4/letter/4/f6c823/32.png) [@4826](https://community.electricforum.com/u/4826)\
**Post date:** [October 8, 2014, 3:29pm UTC](https://community.electricforum.com/t/charging-batteries-individually/4512/1 "2014-10-08T15:29:59Z")

</div>

Do I need to disconnect each of the batteries when I charge them individually or is it ok to just turn off the power?

---

<div class="post-metadata">

**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\
**Post date:** [October 8, 2014, 4:48pm UTC](https://community.electricforum.com/t/charging-batteries-individually/4512/2 "2014-10-08T16:48:55Z")

</div>

Turn off your main switch.

---

<div class="post-metadata">

**Author:** ![arandall](https://avatars.discourse-cdn.com/v4/letter/a/59ef9b/32.png) [@arandall](https://community.electricforum.com/u/arandall)\
**Post date:** [October 8, 2014, 6:31pm UTC](https://community.electricforum.com/t/charging-batteries-individually/4512/3 "2014-10-08T18:31:48Z")

</div>

ARe you talking about charging the string (72v) using the onboard charger OR charging them sequentially one at a time using a 12v charger?

If the former, turn on the main power switch to charge them. If using a 12v charger to charge them one at a time, I’d turn off the main switch. I do the latter occasionally just to “balance” the charge in each battery rather than “overcharging” the stronger batteries to bring the string to fully charged.

Al