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QUALITY OF BATTERIES

As every radio dealer knows, there are many choices for batteries. The following are some issues to consider when buying batteries.

Battery Cells
Battery cells are mostly made by Japanese and Chinese companies. There are two Japanese battery manufacturers and more than 100 different Chinese battery producers. The Japanese battery cells typically last at least twice as long as good quality Chinese battery cells. In our products we use Sanyo for the Japanese cells and Lishen, Grepow, Bak, BPI or Victory Power for the Chinese Cells. The cost of the Japanese cells is significantly more than the cost of Chinese Cells

Construction of the Battery Case
All plastic battery cases are formed from a metallic mold that typically costs between $4,000 and $9,000. The harder the metal, the better the quality of the mold. A cheaper mold will have tolerance issues from repeated use because the soft metal wears away over time. Our battery material is manufactured by Bayer, a German company. They supply the best quality Polycarbonate (PC) material available. Our batteries equal or exceed the specifications of the original batteries made by the Radio Manufactures.

Construction of Contacts
A battery is not effective if the contacts on the battery are not making a low resistance connection with the contacts in the radio. Poor quality contacts are often easily oxidized. Quality battery contacts are made with gold plating on the surface with the underlying material a phosphor copper alloy. High quality contacts maintain their quality for 3 to 5 years, withstand a 24 hour salt test, never deform and, remain usable at temperatures of up to 400 degrees centigrade.

Electronics
Not all batteries have the proper electronics or are constructed to the best quality practices available. To save money, some manufactures eliminate the electronics needed in a high quality battery.

Other Issues
A good manufacturer will pre-test the battery cells and match the cells within a given battery pack. In order to keep long cell life, the cells in a cell pack must have the same voltage and internal resistance. The batteries should be tested with a cell sorting machine. Some cheap batteries do not have matched cells. A battery that does not match the cells will not get the capacity stated and the cycle life will be less than that of quality batteries. The batteries should be tested over the temperature range of -20 degrees centigrade to +50 degrees centigrade and be vibration tested before delivery.

	a		Connect Systems Inc. 5321 Derry Ave Suite B Agoura Hills, CA 91301 PH: (805) 642-7184 FAX: (805) 642-7271
Contacts Connect Systems Inc. Rep Companies World Wide Distributors _________________________ Products Batteries aaaBattery Numbers aaaRadio Numbers aaaMotorola aaaKenwood aaaICOM aaaHytera aaaVertex Two Way Radios Interoperability Wide Area Network Simplex Repeaters LTR Controllers Conventional Repeaters Phone Patches Communication Decoders Specials _________________________ Support Manuals Software Schematics White Papers Radio Connections _________________________ Company History of Company Letter From President Contact Us _________________________		QUALITY OF BATTERIES As every radio dealer knows, there are many choices for batteries. The following are some issues to consider when buying batteries. Battery Cells Battery cells are mostly made by Japanese and Chinese companies. There are two Japanese battery manufacturers and more than 100 different Chinese battery producers. The Japanese battery cells typically last at least twice as long as good quality Chinese battery cells. In our products we use Sanyo for the Japanese cells and Lishen, Grepow, Bak, BPI or Victory Power for the Chinese Cells. The cost of the Japanese cells is significantly more than the cost of Chinese Cells Construction of the Battery Case All plastic battery cases are formed from a metallic mold that typically costs between $4,000 and $9,000. The harder the metal, the better the quality of the mold. A cheaper mold will have tolerance issues from repeated use because the soft metal wears away over time. Our battery material is manufactured by Bayer, a German company. They supply the best quality Polycarbonate (PC) material available. Our batteries equal or exceed the specifications of the original batteries made by the Radio Manufactures. Construction of Contacts A battery is not effective if the contacts on the battery are not making a low resistance connection with the contacts in the radio. Poor quality contacts are often easily oxidized. Quality battery contacts are made with gold plating on the surface with the underlying material a phosphor copper alloy. High quality contacts maintain their quality for 3 to 5 years, withstand a 24 hour salt test, never deform and, remain usable at temperatures of up to 400 degrees centigrade. Electronics Not all batteries have the proper electronics or are constructed to the best quality practices available. To save money, some manufactures eliminate the electronics needed in a high quality battery. Other Issues A good manufacturer will pre-test the battery cells and match the cells within a given battery pack. In order to keep long cell life, the cells in a cell pack must have the same voltage and internal resistance. The batteries should be tested with a cell sorting machine. Some cheap batteries do not have matched cells. A battery that does not match the cells will not get the capacity stated and the cycle life will be less than that of quality batteries. The batteries should be tested over the temperature range of -20 degrees centigrade to +50 degrees centigrade and be vibration tested before delivery.