Powerex MH-C9000PRO Professional Charger-Analyzer

Powerex MH-C9000PRO released oct 2020 is the new version of the MH-C9000 which has been consistently rated as the best nimh battery charger in most online "top list". it gets this rating for good reason, its simple and lets you choose how you want to charge your batteries. unlike the previous model this updated version no longer has the "cycle" function where you can tell it to cycle your cells a given amount of times. however this isn't really required as "refresh and analyze" run multiple times could do the same. with the new version you do get a much better design, and a light that you Don't have to fiddle with buttons to turn off. what you do get are four simple modes, "Charge" - real simple put your battery in and select your charge rate from 200 milliamp to 2.0 A in 100 milliamp increments "break-in" - after inserting a cell you will have to enter the capacity of the cell. from there the charger applies a 16 hour charge .1C then a 1 hour rest a .2c discharge of the battery, a rest again followed by another .1C charge. C being = to the batteries capacity. this will overcharge the battery to its maximum, any excess being converted to heat, or hydrogen gas bleeding off through the vents. "Discharge" - a simple cycle to discharge the battery and not recharge it, just select your discharge rate. "refresh and analyze" - a very simple charge, discharge, charge cycle at the charging and discharge rate you choose and a capacity will be displayed at the end. the charger does have a 10 milliamp trickle charge while the cycles are finished, except discharge. a bit unnecessary for a low self discharge battery and a 2 hour top off charge of 100 milliamp after the charge cycle cuts off at 1.47 volts. which the cut off could be triggered by the battery temperature. for a 60 - 70 dollar charger its not bad, but the top off charge and trickle charge are not really needed with the new low self discharge batteries. its better then a timer cut off, but could use the ability to stop at the voltage drop. short of spending more then twice as much on the sky rc mc3000 or the slightly cheaper sky rc mc2600 where you can set a charging program custom to what you want, this is about as good as it gets. your only other option would be use an ardunio to build your own charger. with cheap cells being just over a buck and good ones just over 2 bucks is it really worth it when most of the time youll be charging at 500 - 1000 milliamp, I don't think so. so go ahead grab two, you know you'll use them.

I went into buying this product off of reading several forum about prolonging the health of my rechargeable batteries. The Powerex came up as an advanced recommendation.( Do not discard of the manual as it has excellent instruction on charging, discharging, and checking battery health and operation) So far I have been able to categorize my batteries by quality/charged capacity thanks to the Powerex - which is when pairing rechargeable

I have been using a La Cross charger for years with my Eneloop black batteries. Some of my batteries were not performing so well after 8-10 years. The Powerex charger helped me cull out the bad ones and see how well some of the old ones are actually holding up. I have done many Refresh-Analyze cycles on my old and new batteries. I found the capacity readings much better on this charger than on my old one. It is not the easiest charger to use as you have to enter the charge and discharge rate everytime, but I think it is the best for your batteries. I also highly recommend the black Eneloop batteries, I bought another brand with high advertised capacity only to find the 8 year old eneloops had more capacity than the new ELB's which have about 70-80% of their advertised capacity. Great Charger!

I got this to see if I could figure out why my basic smart charger stopped charging my AAA Eneloops recently. Long story short, my Eneloops have a date code of 07-11 HH, which means I bought them sometime in 2007, and what I started running them in recently doesn't have a low-voltage shutoff so basically took the Eneloops to zero volts. As I learned recently, this kills NiMH batteries. So, I decided to use this to charge and analyze/condition my EBL AAA NiMH batteries with a nameplate rating of 1100mAh, and there's where the problems began. I bought 20 of these early last year and right from the get-go they had less runtime than my 17 year old Eneloops. When I ran them through this charger I get all sorts of whacky mAh numbers, and some batteries will sit on "Charging" at 300-400mA for four plus hours, far exceeding their rated capacity, and get really hot in the process. I don't know what charging protocol it uses, but hopefully it's not just straight ramming current into the battery. One battery I'm working with right now came back as 19mAh capacity from the "Refresh/Analyze" cycle, sat on Charge for 5 hours at 30hA before I manually pulled it, and after letting it cool I ran a Discharge cycle on it that showed 688mAh. I had 4 of the EBLs that were unused, still in the factory box, so I ran a Break-In cycle on those and that took two and a half days to complete, with final mAh tallies of 19, 594, 674. and 706 mAh. The internal programming and logic seems very inconsistent for something that cost as much as this does. 06/21/25 Revised stars up to 4 from 2. Turns out all my old Eneloops were bad, as were most of the EBLs. I figured out the Eneloops were almost 14 years old, which I didn't realize. I've been using this to try and save/recondition my various LSD NiMH batteries, including my Duracells and Energizers. So far I've been able to save many of my other batteries, or at least get them back to usability. For instance the EBL AAAs were labeled as 1100mAh, most are coming back to the 500-700mAh range. Two are duds, less than 100mAh each, and several are less than 400mAh. Out of 28 batteries originally purchased 4 years ago, I can use around 16. One thing about this charger that I dislike is the way the backlight is managed. If there are no batteries in it then the backlight can't be turned on by pushing the UP/DOWN arrows simultaneously for two seconds. If there are any batteries being charged or discharged then the buttons work to turn the backlight on or off as the instructions say. If you take the batteries out while the backlight is on then it starts blinking on and off, and the only way to stop it is to put a battery back in or unplug the unit.

We've switched ALL our AA and AAA devices to Panasonic Eneloop batteries over the last several years (flashlights, remotes, keyboard, walkie talkies, you name it if it uses AA/AAAs we use rechargeables in it) so we charge and recharge a LOT, this is great to be able to analyze and detect when a specific battery in a group is going bad so you can just replace that one instead of guessing. Also refreshes batteries that haven't been used in a while and breaks in new batteries to the proper charge level. This was an upgrade from a basic Powerex 4 battery charger I got about 10 years ago that still works fine, but I am glad to have the extra features now we use so many rechargeables.

The charger largely does what it states according to specs. The functionality leaves much to be desired. The most frustrating part of this charger is that the display times out too quickly and there appears to be no way to change that or make it stay on. And the mostly vertical orientation of the display. The other thing I dislike equally is after, a Discharge cycle/mode (or any other mode), it does not appear that one could initiate another mode, for example, the Break-in mode without having to disconnect power or remove the batteries and reinserting them all. Tried long pressing different buttons and in different combinations to no avail. Also, If the battery indicates HIGH, the scrolling between the slots halts and remains stuck on HIGH. One would have to remove that specific battery. There is no capability to charge a high resistance battery with this charger. My Tenergy charger can still charge high resistance batteries and still be usable in some devices. Lastly, occasionally, the LCD display segments vanish or become erratic. I've only seen this issue in the Break-in mode when trying to set the capacity of the battery. On one occasion, the charger was stuck and would not respond to any input from the buttons. I took this as an omen to return the unit. Perhaps a warning that imminent failure is likely.

You should get this charger just for the manual. You'll learn something. Nobody knows "rechargeable batteries" like Powerex, nobody. Although more expensive than the alternatives, this charger will be a big, big, huge money saver in the long run. Plus save the environment. After doing lots of painstaking research, looking at performance charts, and having used Powerex 9v products for years, I pretty much will not use anything but Powerex. Any equipment that requires flawless battery operation with minimum risk of battery failure absolutely needs Powerex batteries and a Pro charger such as this. Any critical battery-operated equipment absolutely must run on Powerex to have consistent performance while avoiding failure in my book. Thanks a ton, Powerex, for sticking to your guns and not cheaping out on the builds! You guys are my heroes.

I always hesitate to write any review at purchase, and should be for obvious reasons. This charger at just under $70 with tax should have looked around,found and installed, depleted batteries to be charged instead I found it difficult to manage restorative and charging operations. Definitely not a plug and play, charger. After 2years of light to moderate use, it fails to do anything. power supply still supplying power but fails to display when loaded with batteries. remove one battery and it begins to flash the display. remove the second and it actually displays as when new. set charging preference and charge rate and it reports HIGH, (High resistance). Add back two previously removed batteries and it in turn reports them as HIGH, (junk). these are perfectly good batteries. Do over, I would opt for a less expensive charger.