MAHA MH-C777PLUS-II User Manual Download Page 1

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MH-C777PLUS-II User’s Manual

Thank you for purchasing the Maha MH-C777PLUS-II advanced battery
charger and analyzer. Read all directions and safety information before
operating this unit.

Table of Contents

Chapter 1: Precaution & Safety Information

P. 2

Chapter 2: Features

P. 3

Chapter 3: How to Use a Universal Charger

P. 5

Chapter 4: Connecting Power

P. 8

Chapter 5: Charging a Battery Pack

P. 10

Chapter 6: Conditioning & Analyzing a Battery Pack

P. 15

Appendix 1: Specification

P. 18

Appendix 2: Error Codes

P. 19

Appendix 3: Contacting Maha

P. 20

Appendix 4: Warranty Terms

P. 20

Summary of Contents for MH-C777PLUS-II

Page 1: ...s unit Table of Contents Chapter 1 Precaution Safety Information P 2 Chapter 2 Features P 3 Chapter 3 How to Use a Universal Charger P 5 Chapter 4 Connecting Power P 8 Chapter 5 Charging a Battery Pac...

Page 2: ...t plugged in when you start your vehicle This unit is designed for indoor use only Do not expose the unit to high humidity or high temperature When charging a battery pack that is attached the radio m...

Page 3: ...arger also supports 1 to 12 cells of AA AAA C and D rechargeable battery cells Intelligent microprocessor driven Negative Delta V Zero Delta V and Delta Temperature detection Analyze and condition bat...

Page 4: ...are charging individual battery cells such as AA AAA C or D batteries you must obtain an optional battery holder and connect it to the external charging connector An alligator clip lead cable P N MHS...

Page 5: ...arging contacts are the ones designed to be used by drop in chargers This set of contacts is generally found near the bottom or at the back of your battery pack Some of the battery packs may feature a...

Page 6: ...on the charger to mate securely with your battery pack As explained earlier the floating charging contacts on the charger can be moved to the left or right top or bottom The diagrams below illustrate...

Page 7: ...y want to use a rubber band to secure the battery pack on to the charger Note 1 If you hear continuous short beeps and the LCD screen displays Err1 there is a battery fault Most likely you have connec...

Page 8: ...to 240V AC You may need to purchase an optional adapter that will change the plug on the AC adapter to the appropriate type Using the supplied cigarette lighter adapter The cigarette lighter adapter...

Page 9: ...8V Standard output for small vehicles 1 2V to 4 8V 3 6V 7 2V 18V 1 2V to 7 2V 3 6V 7 2V 10 8V 24V 1 2V to 14 4V 3 6V 7 2V 10 8V 14 4V Note If the input voltage is too low to support the voltage of the...

Page 10: ...rting the charger after the safety timer expires To Begin Charging 1 Connect the supplied AC adapter or cigarette lighter adapter to the charger When you successfully connect power you will hear a bri...

Page 11: ...o properly register the battery pack Note 2 If you hear continuous short beeps and the LCD screen displays Err1 there is a battery fault Most likely you have connected the battery pack s polarity inco...

Page 12: ...mer will reset after the surface charge has been applied 6 Throughout the charging process the LCD screen will display various statistics about the charging process The LCD screen will alternate betwe...

Page 13: ...displays the time minute elapsed during the charge The time will continue to increase until the charging is terminated Battery Mode The LCD will show NI for Nickel Metal Hydride and Nickel Cadmium ba...

Page 14: ...harger has properly terminated the charge because the battery pack has reached a preset temperature This is the equivalence of a full charge This does not indicate an overcharge and usually does not i...

Page 15: ...face charge prior to the actual discharging this is needed to properly recognize the battery voltage After 3 minutes the accumulated capacity will reset and discharging will begin Note As discussed in...

Page 16: ...he rated capacity Note It is important to understand that actual battery capacity will be affected by various factors Among them the most critical is the rate in which the battery pack is been dischar...

Page 17: ...ttery pack is fully charged before analyzing it is on order to assess the real capacity of the battery pack 3 Once charging is complete press and hold the discharge button for 3 5 seconds or until the...

Page 18: ...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...

Page 19: ...um Ion 12V 13 8V Standard output for small vehicles 1 2V to 4 8V 3 6V 7 2V 18V 1 2V to 7 2V 3 6V 7 2V 10 8V 24V 1 2V to 14 4V 3 6V 7 2V 10 8V 14 4V Err3 High Temperature At the end of the charge you m...

Page 20: ...orp will repair or replace the unit at our option without charge for parts or labor After the indicated period of one year the product owner is subject to pay repair and parts fee This limited warrant...

Page 21: ...s which vary from state to state To obtain warranty service contact Maha Energy Corp Service Department at 714 990 4557 When returning a unit for warranty service the product owner must obtain a retur...

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MAHA MH-C777PLUS-II, User Manual

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