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Although the laptop battery  charger on the battery depth of discharge, discharge current and battery temperature control, but all of these factors have an impact on battery life, with a lot of charger can extend the Acer battery life of the function, and sometimes can greatly extend the battery life.

Battery charger extends Acer BTP-43D1 battery  life the role of principal by the charger’s float voltage and charge termination methods. Such as Linear Technology’s a lot of Li-Ion battery charger with 4.2V +1% (or lower) fixed float voltage, but there are some products, as well as 4.1V and 4.0V float voltage with adjustable. Some of the lower float voltage battery chargers, used to give 12V rechargeable lithium-ion batteries can extend battery life.

Does not provide a lower float voltage of the apple battery  charger option can extend battery life. Minimum charge current termination method (C/10 or C / x) of the charger through a proper selection of the charge current value of the termination of a charge cycle, you can extend the battery life. C/10 termination around only battery to 92% of its capacity, but will improve the life cycle. C / 5 to terminate the cycle life can be doubled, but the  A1079 battery further reduced to about 85 percent capacity. Figure 5 show the Linear Technology Corporation several chargers were used to C/10 (10% current threshold), or C / x (adjustable current threshold) end-of-charge mode.

Singlechip MSP430F1 2X2 used to charge the PowerBook G4 battery management program

LTC4088 is a portable USB devices for high efficiency of the autonomous power manager, ideal diode controller and battery charger. LTC4088′s switching front-end topology with power access control functions, the topology optimization of the available USB port power, aimed at very low power consumption for battery charging and application of equipment supply, while alleviating the space-constrained media players, digital cameras, PDA, GPS devices and smart phones in the thermal management problem. Therefore, the IC allows the load current VOUT over USB port absorbed current, which does not exceed limits USB load specifications.

LTC4088′s full-featured single-cell lithium ion / lithium polymer battery charger uses a constant voltage, constant current topology, can provide 1.2A of charge current. Bat-Track operation in Armada M700 battery charger to maintain low power consumption, in order to best achieve the charge time and less heat. “Instant access” type operation allows portable products can increase electricity immediately after the operation, without having to wait for battery charging. Furthermore, the charger also features hot restrictions, automatic recharge, using automatic charge termination and fixed duration safety timer-type of independent operation, low voltage trickle charge, failure detection and a battery pack for the implementation of hot charging temperature qualified Min input resistance. 1C of the additional features include a microprocessor for system power rail’s “always connected” type 3.3V, 25mA LDO, as well as for the prevention of when a device has a USB port connected with the suspension of Compaq Evo N610C battetry  leakage occurs when the suspension LDO.

USB / AC Adapter Li + battery charger with 0.05Ω disconnect switch. Figure 1 for implementation with MAX8606 to maintain safe operating temperature and sustained continuous charging, the temperature adjustment function automatically reduce the charge current applications.

MAX8606 achieve by maintaining the safe operating temperature and sustained continuous charging, the temperature adjustment function automatically reduce the charge current

MAX8606 is a temperature adjustment function with linear Li + battery charger, internal integrated low RDS (oN) Inspiron 6400 battery disconnect switch, can work in USB port or AC adapter. It Satisfied USB over-current regulatory requirements, suspend mode only draw less than 30μA of current USB. With the AC adapter connected, the internal power FET up to 1A of charge current, we can make sure tolerance of up to 14V input voltage transient. Even in the absence of the installation of the Inspiron 6000  battery or the battery depth of discharge has been the case, SYS output with the battery disconnect switch, can still communicate through the USB or adapter power supply input to the system. In order to maintain safe operating temperature and sustained continuous charging, the temperature adjustment function automatically reduce the charge current.

Its limit or control technology is the  Inspiron E1505 battery temperature EN1 and EN2 pin through the implementation of the suspend mode user settings, l00mA, 500mA and restrictions on the importation of up to 1A. SET is a charge current monitor function.

Can also be recharged before the power supply to the system is flexible and at the same time to charge the  Inspiron E1705 battery and system power supply, the need for an external Schottky diode to block the prosecution resistor or FET; low dropout internal charging FET, 0.5A at 0.25V; up to 1A of Programming flow faster charging; input current limit to meet the USB specification; Latitude D600  battery charge and system power flow between both achieve automatic adjustment; advanced constant current, constant pressure and die temperature (CCCVCTJ) technology; 6VIN more than the over-voltage protection ( the largest 14VIN).

MAX8808 achieve with 1A Li + constant pressure, constant current, temperature regulation and control programs charger. It has up to 15V adapter input, and the MAX8808 in a tiny area of 4mm2 package integrates power MOSFET, reverse current blocking diode and the galvanometer resistance, and in such a small size package for fast, safe charge . MAX8808 adjustable device temperature, current and voltage, and thus dispense with a bulky heat sink, and solved the small handheld devices such as cellular phone, dell battery , PDA and digital cameras in the thermal management concerns. Its thermal regulation technology reduces the temperature rise of the environment, improve reliability, and reduces the safety margin requirements due to the cost. In order to avoid only a cursory cheap AC adapter adjust its damage.

MAX8808 can guarantee up to 15V input transient, and has built-in overvoltage protection (OVP) circuit to prevent charging under fault conditions.

Micro-, thermally-enhanced TDFN package (0.8mm height); proprietary temperature and regulation of CC-CV achieve the safest and most rapid charging; 0.5A current, Latitude D820 , XPS M140  voltage drop 0.3V; high effective logic enable (MAX8088Y); save the state of pre-conditioning (MAX808Z) and soft-start.