There are many the reason why you wish to discharge LiPo batteries. Maybe you might have totally charged LiPo left after a flight session, or perhaps you wish to discharge the battery fully for disposal. In this text I’ll present you a couple of easy methods to discharge your LiPo batteries.
You could use your LiPo chargers to do it since most of them today have discharging operate. But they’re usually solely rated for a couple of watts and might take a really very long time to discharge.
Further Reading: How to dispose LiPo batteries?
You can get the 3in1 discharger from:
This is likely one of the quickest and most financial dischargers. At 150W, it will possibly discharge most batteries in a matter of minutes.
You can both discharge the battery fully, or set a voltage to stops the discharge (e.g. 3.80-3.85V per cell for storage). It is straightforward to make use of and even retains all of the cells balanced in the course of the discharge.
One factor to be careful for is that the bulbs get actually sizzling in the course of the course of. It’s essential that you simply hold them away from something that may soften or burn. Leave them on concrete flooring is ideal.
Check out the tutorial: How to construct a DIY halogen bulb discharger
This is probably my favorite option to discharge batteries for disposal. It’s not costly to make, and it’s loads quicker than utilizing resistors of comparable worth.
These halogen gentle bulbs are rated at 12V, so in concept you may solely discharge as much as 3S batteries. However in case you join two in collection you are able to do as much as 6S, and that is what I did in my tutorial.
Check out the tutorial: How to construct a DIY resistor discharger.
I actually like this DIY device for discharging outdated or broken batteries. It’s low-cost to make. Perhaps a bit slower, nevertheless it’s a lot safer for broken batteries because it received’t construct up warmth within the battery and trigger puffing.
If you might have a LiPo charger that may be powered by a LiPo battery, you are able to do reverse charging 🙂
Basically you should utilize your totally charged LiPo to energy your charger, and storage-charge your empty LiPo’s. You may even related a number of totally charged packs on a parallel charging board to hurry up the method.
This is a quick and nice option to discharge your full LiPo to any voltage you need, and no power is wasted.
Make certain to set minimal enter voltage to three.8V per cell, for a 4S that’s 15.2V, for a 6S that’s 22.8V. Maybe even barely decrease than that, because of the voltage sag underneath load, and voltage will usually come again up after resting.
- Jul 2018 – article created
- Mar 2019 – added reverse charging