Schematic for the battery board of the Quanta Z8A design used by Acer, an 77.6 KB PDF; c1 and 0708 in the name appear to be a revision and date code.

Small 43 KB RAR archive for Apple board 820-1819, described as the backup battery charger board.

Despite being filed under BIOS and firmware, the name of this 126 MB ZIP points to a guide or project material on building a power bank from cells salvaged from a used…

Datasheet for the M48T18, a TIMEKEEPER device from ST that combines battery-backed static RAM with a real-time clock in one package.

Document for the BQ24730, a Texas Instruments laptop battery charger controller, supplied as a 4.13 MB PDF.

Battery compatibility list in Spanish, a small 88.5 KB PDF that likely matches phone batteries interchangeable between models.

ZIP package of NLBA Laptop Battery Analyzer version 3.2.4, a Windows utility used with SMBus adapters to read and edit data in laptop battery controllers.

PDF document whose Spanish title refers to I2C battery compatibility from a wholesaler, catalogued as a schematic though it is likely a compatibility reference.

Renesas datasheet for the ISL6251A, dated 2004-11-03 and supplied as a 1.05 MB PDF. The ISL6251A is a battery charger controller often found in older laptops, regulating…

Summary datasheet for the ATmega406 AVR microcontroller, a 179 KB PDF. The ATmega406 is aimed at smart battery management, so this part often turns up inside laptop and…

Datasheet for the Maxim MAX691 microprocessor supervisory circuit, which combines power-on reset generation, a watchdog timer, battery backup switchover and memory write…

Datasheet for the Microchip PIC14C000, a mixed-signal microcontroller aimed at measurement applications such as battery monitoring, delivered as a 766 KB PDF.

Document for the Texas Instruments BQ24727, a 181 KB PDF filed as a schematic. The BQ24727 is a notebook battery charge controller with SMBus control, frequently found…

PDF reference for the BQ24721C, a Texas Instruments multi-chemistry battery charge controller used in older notebooks.

Texas Instruments datasheet for the bq24735 and possibly related parts, a 2.35 MB PDF. The bq24735 is a battery charge controller used in many laptops to manage adapter…

Short Spanish-language PDF on battery compatibility, only 88.5 KB, filed with schematics but really a cross-reference table.

PDF technical document for the Intersil ISL9241, a buck-boost battery charger controller found in many laptops.

Texas Instruments BQ24730 datasheet, 4.13 MB in PDF, filed under schematics; the name gives only the part number.

Datasheet for the TI bq24725 battery charge controller, a 1.49 MB PDF. The chip is controlled over SMBus and drives external MOSFETs to supply the system and charge a…

Boardview for Apple board 820-1686, the backup battery board, stored as a RAR archive of about 228 KB.

Schematic set for the LG B2050 mobile phone in a 709 KB PDF. These drawings let a technician follow the charging and battery circuits, trace power rails, and check…

PDF for the bq24780S, a Texas Instruments battery charge controller used in many notebooks to manage adapter detection, charging and system power selection.