Listing is for a 2-pin laptop cmos battery. These work with any brand laptops (dell, lenovo, acer, hp, etc...) as long as the battery connectors match. The connector is shown in the photos.
Item Features
Great Part to replace the broken and non working CMOS Battery for Dell E6430 E6440 E6530 E6540 E6330 E6320 E6420 E6520
High capacity battery
The real time clock battery CMOS BIOS backup battery with two wires two pin connector
Will fix the following error codes: Systems battery error / System CMOS checksum bad / System Timer error / Real-Time Clock Error
2 Wires - 2 Pin Connector
Voltage: 3V
Length: 6.5 cm