Battery and Control IC : Hitachi High-Technologies Corporation

Li-ion Rechargeable Batteries (Manufacturer:Hitachi Maxell, Ltd.)

Lithium battery has the following features and its applications are notebook PCs, mobile phones, PDA, camcorders, portable audio equipment, PHS, wireless communication equipment, etc.

Operating voltage of 3.7V and high energy density.
Excellent high load characteristics
Excellent discharge temperature characteristics from-20 deg. C to 60 deg. C
Excellent storage characteristics with minimum self-discharge
Charge characteristics with no memory accumulation
Highly economical, more than 500 charge-discharge cycles

Control IC for Li-ion Batteries (Manufacturer:Hitachi ULSI Systems Co.,Ltd.)

Control IC is designed to supervise the charge and discharge voltage limits for a lithium-ion rechargeable battery, suitable for battery packs containing one cell or parallel configurations.
It turns off MOS FET switch when it detects overvoltage, undervoltage and overcurrent of the battery and improves the safety of the battery and the application system.
Features :

For one cell battery pack of Mobile phone and PDA etc.
High precision battery voltage detection