SkyRC BD250 250W 35A LiPo/LiHV/NiMH Battery Discharger & Analyzer

I've owned the BD250 for over 4 years now. Never had an issue with it. I use it to discharge my LiPo batteries at 10A to 3.7V per cell, then let the battery settle and cool down (usually about 1 hour). Then I do a storage charge to 3.8V per cell. I love the PC app to keep track of my batteries health. A fast way to discharge or just cycle your batteries. Some of my batteries are 4+ years old and still have almost the same performance as when they were new. This is a serious discharger and works better than any others that I've owned. Great way of keeping track of the health of your batteries. I don't know how I went decades without owning one (probably because the BD250 wasn't around when I got into the RC Hobby lol). I highly recommend the BD250 to anyone that wants to maintain the health of your batteries and great for discharging batteries that you may have charged and were unable to use. Since it only discharges to your specified overall voltage that you set, it doesn't know the individual cell voltage and this is why I discharge slightly below the storage charge voltage, then do a storage charge with my charger. The PC app is very easy to use and tells you time in hours, minutes, seconds Current ( Amps), Voltage, Capacity (mAh) and power rating in total watts all in a simple graph that can be saved as a file, image, and exported to Excell. You control everything from the app if that's what you want to use, or you can use the BD250 as a stand alone discharger without a PC. A must have for keeping you batteries in top shape and recording and comparing batteries to see which pack is the best performer or track the health of your batteries health.

Great product. I am able to discharge my batteries to storage level, quickly and accurately. Very easy to use. Highly recommend to keep your batteries in peak performance.

I didn’t even k is a standalone device existed. Found this by accident. I have an Ovonic charger and it can take hours to discharge. It will run at 0.6 amps. Discharging a 10000mah battery has taken me 8 hours. Did it with this at 10 amps and was done in about 25-30 minutes. What really impressed me is it stayed warm to the touch during the process, never got hot. Great functionality, value, and a game changer for me.

This item is easy to use and works great. The software you can download and connect via cable is easy to use also and has the ability to show lots of information about your battery.

I love this battery capacity tester! Many great features: 250 W max draw lets you test even big batteries quickly. It looks cool while running (blue LEDs on the fans). It only launches its fan if it gets too hot. When running it quickly alternates between AH and battery volts and amps. It lets you customize the low voltage cutoff, and the max amps to draw. The knob turning is "smart", intuitively detecting when you want to make big or small changes to the value. The interface is simple, therefore easy to remember over time (for those of us sometimes experiencing senior moments!). You can provide external power through micro-USB so its own power draw does not pollute the results, and so that it remains "on" even if the BMS in the battery you are testing cuts off. But beware: it will silently rollover back to 0 AH when it crosses ~65 AH, which makes testing batteries larger than 65 AH confusing until you realize this. If you test a battery overnight, wake up, and see 20 AH, you cannot know if it was really 20 AH or maybe 85 AH. The previous model (SKYRC BD200) had the same silent ~65 AH limit, so I purchased this one hoping that was fixed, but alas, no.

If you have lipos you need this dedicated discharger. It’s a beast and saves your batteries. Comes in handy when batteries are charged up, and you don’t get to use em. Item works as advertised, and easy to use. Discharges lipos fast.

I did not use this as I sent it another person to do work on Lithium Battery

Mine didn't work right out of the BOX! I plugged a 6S battery into it for discharge ,and it went up in smoke. Then I found out from Amazon I missed the return window. So, make sure you test your new electronics soon after receiving them! Here I sit , no discharger and out a hundred dollars. I wish I would have known this sooner! Also, there was some damage to the box it was in, but not sure if it had anything to due with its failure

Works well as a discharger, but be aware that if this product is being used connected to a pc (using the dedicated app), it can destroy the pc and the charger if the wrong combination of keys is pressed. This sounds ridiculous, but I was using this discharger connected to a laptop via a usb port (because the app provides more options than using it stand-alone). My cat jumped onto the table and walked straight onto the keyboard before I could stop him. I have no idea what keys he was standing on, but the discharger immediately began fizzing and smoking and the laptop shutdown and won't boot. I suspect the battery I was discharging (5S LIPO) was connected directly to the usb port. So, the discharger is a write-off and, probably, so is the laptop. My error for not keeping the cat away from what I was doing, but I wouldn't have expected any combination of keys to have the effect it had (maybe abort the discharge, or lock up the laptop, but not complete thermal destruction). So......... if you have this discharger and you use it connected to a pc, be careful.