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"Finally, a PowerEx charger that will charge, condition, analyze, and digitally display capacity, voltage, and time for almost any Lithium Ion / Polymer, NiMH, and NiCD battery packs."


Based on the invaluable inputs of thousands of PowerEx  product users and engineers, the MH-C777PLUS-II is designed with you in mind. From its universal charging capability for almost any shape Lithium Ion, NiMH, and NiCD battery packs to its digital voltage and capacity display, the MH-C777 PLUS is a true winner. Best of all, with all of these advanced features the charger is available at a affordable consumer cost. 

PowerEx  hopes that you will find this product useful for all of your battery applications. 

Universal design like its predecessor MH-C777 to accommodate almost any battery pack for digital cameras, two-way radios, cellular phones, camcorders, individual battery cells and more.

The "floating contact pin" system enables you to move the charging contacts from left to right and from top to bottom to charge almost any shape of battery packs.

NEW:Analyze (Discharge Only Function) the battery pack to obtain the discharged capacity of a battery pack, which is retained on the screen until the reset button is pressed.
NEW: One-Touch Reset button allows the user to reset the charger without having to disconnect power from the charger.

Support Lithium Ion, Lithium Polymer, NiMH, and NiCD battery chemistries.

Supports a wide voltage range of 1.2V to 14.4V (1 to 12 cells) for NiMH & NiCD, and 3.6V to 14.4V (1 to 4 cells) for Lithium Ion.

In addition to battery packs, you can also charge 1 to 12 cells of AA, AAA, C, and D rechargeable battery cells. The possibilities are endless! (Requires optional battery holders) 

Intelligent microprocessor driven Negative Delta V detection, Zero Delta V, and Delta Temperature.

Analyze and condition battery packs and display capacity.

Digitally display voltage, time, and capacity throughout the charge and discharge processes.

A sample LCD readout indicating the discharged capacity of a Lithium Ion battery pack, while also showing voltage.

A sample LCD readout indicating the charging capacity of a NiMH battery pack, while also showing voltage.

Include a light weight travel autoswitching AC adapter (80V to 240V AC).
Include a car kit.

Include a "alligator clip-lead cable". This accessory allow you to connect the charging terminals to external batteries, including battery cases which can then be used to charge AA, AAA, C and D battery cells.

Do you have more question or wish to learn more about the MH-C777PLUS-II?
Visit the MH-C777PLUS-II FAQ (including pre-sales questions)

MH-C777PLUS-II reviewed by Steve's Digicams
06/30/2002: The PowerEx/Maha MH-C777PLUS is a super-intelligent analyzer, charger 
and conditioner for NiMH, Lithium polymer and NiCd type batteries and packs.



MH-C777PLUS reviewed by QST magazine
03/2002: The Maha 'MH-C777-series microprocessor-controlled chargers can help you get
maximum performance out of a wide variety of rechargeable battery pack types.


Document Downloads


Purchasing Information


Part Number Description MSRP (USD)
MH-C777PLUS-II Universal Charger & Analyzer Sold-Out
MHS-CW4 Clip-lead accessory for external charging adapter (included with the MH-C777PLUS-II)
MHS-DC-777 Cigarette Lighter Adapter Car Kit (included with MH-C777PLUS-II)




Detection: Negative Delta V, Zero Delta V, and Temperature
Chemistry Supported: Lithium Ion, Nickel Metal Hydride, Nickel Cadmium
Voltage Supported: 1.2V to 14.4V (1 to 12 cells) for NiMH & NiCD
3.6V to 14.4V (1 to 4 cells) for Lithium Ion.
Rapid Charge Current 800mAh +/- 50mA for NiMH & NiCD
400mAh max for Lithium Ion
Trickle Charge Current 70mA
Discharge Current 300mA +/- 50mA
Safety Timer 13 Hours
Included Adapter: Switching adapter 80V-240VAC Autoswitch to 24VDC 0.83A