2pcs StoreSafe Smart LiPo Battery Discharger to Storage Voltage with Heatsink for 2S-6S RC FPV Drone Battery (2pcs) (XT60)

I have been looking for something small to keep with each vehicle so I don't forget to do it when I get home. These worked out great..they work as expected

I originally bought two of these Smart Lipo Discharger plugs in July 2021 and again on the same month a year later; only that time I bought four more. I was extremely impressed with how Easy and Simple it was to plug these onto my Lipo's and move on to other priorities that required my attention.On 3s they become warm but you're still able to handle them, but 4s is almost too hot to touch! Either way, you really want to use these smart discharge plugs over a fan that's constantly blowing at a low setting; the airflow helps dissipate the excess heat build up these little devices create to slowly drain a lipo's voltage down to ~3.8 volts per cell and it automatically shuts off once it reaches that voltage point even if you forget to unplug it.This leaves a lipo at a good 55% Voltage for long term storage, you could discharge a lipo further down to 30% (~3.77v) but don't discharge a lipo past 15% (~3.71v) otherwise you'll destroy a cell or two and no amount of trickle-charging can recover the capacity once it's damaged; it only gets worse and it'll start to puff!Puffy batteries are on a random countdown and can erupt into flame spitting toxic torches! It's safer to buy a "Lipo Killer Plug", than to burn, puncture them, shoot them with a firearm, or bathe it in a salt-water solution. NEVER throw Lipo's in the trash, you can be the cause of a fire that can hurt people or damage property if the leads or balance plugs come in contact with any kind of metal.Be responsible, Do your own research, and Gain wisdom from others who've dealt with these power sources.

These work, but don’t expect fast results to get your batteries down to storage voltage. It took 36hrs to get a 4s 3200mAh Lipo from 4.17v down to 3.85v.

I’ve only used these for 2S and 3S batteries, but they work as advertised! They get a little warm, but nothing crazy in my experience.For the size, they work well. It mentions in the instructions that the rate of discharge is determined by how warm they get. I leave mine poked though the charging hole in my lipo bag so they are exposed to fresh air, and none of my packs have needed more than a few hours. I’d imagine that leaving them inside the lipo bag or otherwise unventilated would increase the discharge time. They are convenient for their size, but they have their limits.Only downside: the heatsinks are sharp. Both of mine had very sharp corners, sharp enough that I didn’t want them floating around loose in the lipo bag with my soft lipo packs. A couple quick passes with a file got them nice and smooth.

Does the job for cheap price

Both of them correctly sense my 4s batteries, then you can feel they are working because the heatsink warms up, but they turn off, and become cool within just a couple minutes and do not start again unless you unplug them for a few seconds and try again. Did this 3 times with a 650mah 4s lipo that had 100% charge. After the third attempt in 20 minutes, the battery had 98% charge. Both units do the exact same thing. I emailed vifly within an hour of receiving these and have yet tohear back, that was 2 days ago. Guess it's refund time.

This is one of the most amazing products I've found in a long time. It does exactly what they say it will. It helps your batteries sooo much & saves there ability to work for a long time to come. I plain to buy more soon. I only wish they had other options for this exact battery saver. I mean different plug types, they have them for the XT-60 & XT-30 plug types. Just not for any other battery plug types (that ive been able to find so far)If someone reads this & know of other ones of this brand that can be used on other plugs please fell free to find a way to get ahold of me or leave comment on mine just any way you can think of lol.I think its well worth the price easily. The description of the product is right on.And anyone can use this without any problems, all you do is plug-in & that's it. But be sure to read instructions due to the amount if battery power you need to have to put it on. Not suree if that's the greatest words to use but shows that you need to read instructions to be sure your doing what is asked.Great product!

I plugged one into a 2s 5000mah lipo and the other into a 3s 5000 mah lipo. I left them plugged in all night and tge next day the led lights were off and both batteries were still in the 70% range. I really wanted these to work. Waste of money.