DIY: Module Discharge Battery Phantom 3

[PapaTita]

The idea is when we need to manual discharge for battery maintenance or we are in a location away from the power supply while hp, tablet or remote need it.

The material:

1. Step down USB:


2. Plate from rear pc:


After cut and soldered the plate:


Covered with heat shrink:

YouTube:

 

[Mark The Droner]

That's amazing! I was just telling my wife two days ago, somebody needs to invent a way to use these unreliable lipos that we can't fly with and are accumulating - and make them useable like a power pack so that we can charge stuff. Somebody needs to make a cord that can plug into the power end and then will accept a usb cable. That's exactly what I told her. And then this comes up two days later...

Edit: this looks like the one: https://www.amazon.com/dp/B00XPZ7I4I/ref=pd_luc_rh_sbs_01_03_t_img_lh?_encoding=UTF8&psc=1

 

[DavidN747]

Or this:


Dual USB 9V/12V/24V/36V to 5V Converter DC-DC 3A Step Down Power Module

 

[PapaTita]

Or this:

Dual USB 9V/12V/24V/36V to 5V Converter DC-DC 3A Step Down Power Module

Yes, this another module:

 

[solentlife]

EBay etc. have had dischargers with USB connection to use the power for charging mobile phones etc. for ages.

I have one. Its programmable to do either full discharge to lower safe limit about 3v or to safe storage voltage per cell.

Nigel

 

[PapaTita]

EBay etc. have had dischargers with USB connection to use the power for charging mobile phones etc. for ages.

I have one. Its programmable to do either full discharge to lower safe limit about 3v or to safe storage voltage per cell.

Nigel

I did once discharge to 0%, if we see the cell information in go app shows 3.5-3.6v, this limit of lipo battery, it has been set by intelligent battery phantom.

 

[HawkMan]

The idea is when we need to manual discharge for battery maintenance or we are in a location away from the power supply while hp, tablet or remote need it.

The material:

1. Step down USB:
View attachment 70951

2. Plate from rear pc:
View attachment 70952

After cut and soldered the plate:
View attachment 70953 View attachment 70954

Covered with heat shrink:
View attachment 70955

YouTube:

What is the unit, please, and where can I buy one?