Can I fix that LiPo tag? Inexpensive Lipo Discharger That 2 days ago   11:34

Can I fix that LiPo tag? I was working on one of the small LiPo batteries in the Power Pods from Poundland and the tag fell off the positive terminal. Soldering directly on a LiPo battery is asking for trouble because you could easily overheat it and start a reaction inside that could potentially end with boiling electrolyte and even flames. I wanted to try a technique for soldering on Aluminium but actually managed to get solder onto the remaining ferrous tag. That was good enough to get the battery working again and I did a separate video on soldering on some Aluminium sheet from a drinks can.

My Channels
Put a rubber band on it
You can help keep my channel running with a dollar for coffee and cakes at
If you don't want to use Patreon you can buy me a coffee here instead
Merchandise on RedBubble
Merchandise on Cotton Cart

Here is a selection of related playlists/videos
Soldering Aluminium
LiPo Low Voltage Alarm
LiPo and LiIon Batteries
Disposable e-cigarette LiPo re-use
RC Ferrari Fiorano New Bright 40 Mhz
Grandad's Ferraris
Grandad's Lamborghinis
Radio Control Cars
RC cars Scratch builds
Grandad's Lamborghinis
RC Car Lamborghini Veneno 40 MHz
RC Lamborghini Aventador LP700-4 2.4GHz TOY GRADE
RC Porsche Panamera S Hybrid DX121436 Diasaw Toys 27 MHz
RC New Bright Mercedes-Benz SLR McLaren
RC Maisto Extreme Beast 2.4GHz
RC FastLane Jeep Cherokee
RC Car 40 MHz New Bright Hummer H3
RC Mitsubishi Pajero/Montero 4x4 Hobby Grade Conversion
RC New Bright Corvette
Charity Shop - Gold or Garbage playlist
2019 Charity Shop Gold or Garbage?
Disassembly/Tear down playlist
Grandad does plumbing and other household chores playlist

Oldest videos
Most Popular
Newest videos
I have thousands of videos on YouTube, to find one try my search guides or

#GrandadIsAnOldMan #GrandadsOtherChannel

Comments 11 Comments

anthony belcher
Very interesting
Lynn Hemeon
Your hands are much steadier than mine..
Raggy Ragsdale
Cheese and Crackers!!! Great fix! Raggy
stephen preece
wow, that's scary lol. had a run out to my favorite flea market today and picked up a couple of RC one is this fellow I plan on a hobby mod as it has no transmitter but looks like a great bit of fun
Foamy Flightmaster
A brave man indeed, hope you keep that one in a safe place ...
Coppersoldier 992
Yes and i hope you hit 100k or more subs!
Add Reply

Inexpensive Lipo Discharger That Can I fix that LiPo tag? 2 days ago   06:38

3-in-1 Battery Balancer, Voltage Indicator and Discharger

I’m glad I finally found this device (thanks to a thread I am subscribed to on RC Groups).

There may be many of you that wonder why I would want one of these.

Let me see if I can explain why:

We do not have power at our flying site, I don’t have a generator and I choose not to charge at the field using my car battery etc. I end up buying as many batteries per plane that I can reasonably fly in one day.

I charge up enough batteries for each of the planes I will take to the field that will get me through the day. For a wide variety of reasons, I may not be able to get all my flights in so I might end up coming home with a few fully charged packs.

Lipo Storage Safety: I have come to believe there is a greatly reduced risk of a lipo fire or at least the intensity of a lipo fire if they are stored in a metal container at storage voltage.

Over the past few years, we have done a lot of experimenting destroying lipos and while we can get spectacular results setting off fully charged packs, we get nothing but a little fizz out of packs that are at storage voltage. I personally know of a few guys who burned down their homes because of Lipo mishaps and that’s a club I don’t want to join!

So, when I get home, I discharge any full packs left over from the day. I have six, good quality chargers (two duo chargers and two single chargers) and I have been using their discharge feature to draw down the packs. There is a lot of heat generated by the discharge function and I have never been happy about that. Recently, one of my Thunder Power 820 chargers started to act funny and started to perform functions at a greatly reduced speed (response to button pushes, etc.) Re-flashing the firmware did not help. I am thinking that I may have damaged it by overheating it by discharging two 5000 mAh lipos back to back.

I was looking for an affordable discharger and found a thread on RC Groups of like-minded individuals. These guys are electronic wizards and have designed and built one. I was in the midst of assembling all the bits and pieces to build one based on their design when someone posted a link to this device.

For about 20 bucks (including shipping), this was a no-brainer.

I have discharged about 10 packs so far and it works like a charm.

Note: I did not receive this unit free for evaluation and/or review, I bought a couple at full pop.

Here is a link to the product:

Here is a link to an even less expensive model that is exactly the same but only uses one 50W bulb as the load. I’d rather pay the extra 3 bucks for the 150W version to save a lot of time babysitting the packs as they discharge.

Here is the link to the thread on RC Groups if you’re keen to build your own. The total cost of the DIY version is more but it is more robust and can handle a bigger load.

Thanks for watching!

Royalty Free Music:
Sex & the City by Re-Drum from
Crimson Fly by Huma-Huma from YouTube’s Audio Library