# DIY USB charger ready!

**URL:** <https://community.tempest.earth/t/diy-usb-charger-ready/12519>\
**Category:** Tempest Owners\
**Created:** [March 2, 2021, 11:59am UTC](https://community.tempest.earth/t/diy-usb-charger-ready/12519 "2021-03-02T11:59:24Z")\
**Posts on this page:** 1\
**Showing post:** 119

<div class="post-metadata">

**Author:** ![ding.b](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/ding.b/32/13501_2.png) [@ding.b](https://community.tempest.earth/u/ding.b)\
**Post date:** [December 15, 2024, 12:20pm UTC](https://community.tempest.earth/t/diy-usb-charger-ready/12519/119 "2024-12-15T12:20:07Z")

</div>

@4.8V it draws just over 2W

This is my faulty sensor tempest  
Just seeing if a boost to the battery which was getting low would revive the rh sensor and others that have failed.

 ![image](https://us1.discourse-cdn.com/flex020/uploads/sws/original/3X/2/e/2e6e7ed794bdef73e4f67a552605b5ee80a76bd7.jpeg)

Should be cooked in about 1-2 hours ( from slightly above the psm 1)😏

Edit; about an hour and it’s almost fully charged.

The wattage halves nearing full charge.

 ![IMG_2717](https://us1.discourse-cdn.com/flex020/uploads/sws/original/3X/5/4/5463b262926b0091fd2118b8de55e7396e9b0f7e.jpeg)

---

_[View the full topic](https://community.tempest.earth/t/diy-usb-charger-ready/12519)._