ToolkitRC M7 Multi Function 200W Smart Charger

This thing is So tiny But there's still enough room in it for a cooling fan, Just make sure you have the little legs kicked out so it can breathe. It uses XT60 connections for both Power input and power output. Instead of buying a new power adapter with an XT60 Connector I just soldered one on to a 10 AMP power supply I already had and it's working great. The wheel is great for moving through all the menus and making adjustments to the settings in the screen looks amazing. For the price I really don't have anything to complain about with this charger.

Overall, I really love this charger. It's so much easier to use and is much less confusing than the Tenergy TB6B I was using. Having the full graphical screen instead of a character-only display makes all the difference. It's fairly fast charging. It's very compact and easy to carry. And having the on-board servo tester available is nice. I have mainly used it on 2S and 3S LiPo batteries thus far and it's performed admirably.

I have, however, encountered a few glitches. The first was when Storage-Charging a 2S LiPo. It kept giving a cell voltage mismatch error and refused to start. When that error occurred, it was showing a 0.51v difference in its reading between the main (overall) battery voltage input and the balance connector inputs. The strange thing is the difference remained even after unplugging the battery until I unplugged the cable. At first, I thought it was the cable, but other cables did the same thing. After some research online, I found that there was an updated firmware to fix this issue and upgrading the v1.00 firmware it came with to the latest v1.02 solved the issue.

The other glitch I found is that when storage charging and doing primarily discharging of the battery, it won't quite get the per cell voltage down to the 3.85v target unless you use a decent discharge current. If you are trying to be gentle with it and discharge a 500mah pack at 1C you'll end up with a 4.00v per cell result. So, instead of discharging at 0.5A, use something like 2A. My theory is that it needs to see a certain minimum voltage drop internally during its balancing process and by Ohm's Law, that would mean you need to increase the current to give it better resolution. Charging, though, at 1C or less, as you should charge a LiPo, however, works fine. It's only the discharging that needs higher than 1C current.

Otherwise, I have no complaints. Though, I've only had it for a little over a week now. Time will tell how well it holds up and gets more use.

This thing is So tiny But there's still enough room in it for a cooling fan, Just make sure you have the little legs kicked out so it can breathe. It uses XT60 connections for both Power input and power output. Instead of buying a new power adapter with an XT60 Connector I just soldered one on to a 10 AMP power supply I already had and it's working great. The wheel is great for moving through all the menus and making adjustments to the settings in the screen looks amazing. For the price I really don't have anything to complain about with this charger.

Overall, I really love this charger. It's so much easier to use and is much less confusing than the Tenergy TB6B I was using. Having the full graphical screen instead of a character-only display makes all the difference. It's fairly fast charging. It's very compact and easy to carry. And having the on-board servo tester available is nice. I have mainly used it on 2S and 3S LiPo batteries thus far and it's performed admirably.

I have, however, encountered a few glitches. The first was when Storage-Charging a 2S LiPo. It kept giving a cell voltage mismatch error and refused to start. When that error occurred, it was showing a 0.51v difference in its reading between the main (overall) battery voltage input and the balance connector inputs. The strange thing is the difference remained even after unplugging the battery until I unplugged the cable. At first, I thought it was the cable, but other cables did the same thing. After some research online, I found that there was an updated firmware to fix this issue and upgrading the v1.00 firmware it came with to the latest v1.02 solved the issue.

The other glitch I found is that when storage charging and doing primarily discharging of the battery, it won't quite get the per cell voltage down to the 3.85v target unless you use a decent discharge current. If you are trying to be gentle with it and discharge a 500mah pack at 1C you'll end up with a 4.00v per cell result. So, instead of discharging at 0.5A, use something like 2A. My theory is that it needs to see a certain minimum voltage drop internally during its balancing process and by Ohm's Law, that would mean you need to increase the current to give it better resolution. Charging, though, at 1C or less, as you should charge a LiPo, however, works fine. It's only the discharging that needs higher than 1C current.

Otherwise, I have no complaints. Though, I've only had it for a little over a week now. Time will tell how well it holds up and gets more use.