A. For Laptop Batteries:
Please check your laptop model and/or original battery's part number. Please also compare the shapes, physical appearance, position and orientation of the connector, and latch position of your original battery with our product images to ensure compatibility.
To find laptop model for Windows: Go to Settings --> System --> About, and it will show your laptop model.
To find battery's part number: Please look at part number on the label of your original battery. For examples:
HP: MU06, HT03XL, HSTNN-C51C, 516477-191
Dell: 5046J, JWPHF, P06E
Toshiba: PA5185U-1BRS, PABAS097
Asus: A32N1405, A32-F3, 90-NE51B2000
Sony: VGP-BPS26, VGP-BPS26/B
Acer: AC14B3K, BT.00403.009
Lenovo: 90+, 45N1003, L14M3P21
Apple: A1582, MB471LL/A
Type: Lithium-ion and Lithium-polymer are standard material for laptop batteries. They have a good power-to-weight ratio and has no memory effect like some other battery materials.
Voltage: The Voltage must be within 10% of your original Laptop Battery Voltage.i.e. 11.1V is ok for your original 10.8V Battery; 14.4V is ok for your original 14.8V Battery
Capacity: Laptop batteries will typically list their capacities in milliamp hours (mAh) or Wattage (Wh). A higher mAh or Wh rating means the battery will take longer to drain, giving your laptop a longer runtime per charge.
i.e. 5200mAh can replace your original 4400mAh Laptop Battery
Cell: Extended batteries (i.e. 9 cell) are usually has extra run time of laptop in between charges, usually bigger in size and weigh more than a standard laptop battery (i.e. 6 cell).
B. For Laptop AC Adapters:
Voltage: The Voltage must be within 10% of your original AC Adapter Voltage.
i.e. 19.5V or 18.5V is ok for your original 19V AC Adapter
Amps: The Amps may be higher but they cannot be lower. If the replacement Amps is higher, your laptop or tablet will only take the amount of power it requires and it will not damage your device.
i.e. 3.65A is ok for your original 3.15A AC Adapter
Wattage: The Wattage also may be higher but they cannot be lower. If the replacement Wattage is higher, your laptop or tablet will only take the amount of power it requires and it will not damage your device.
i.e. 90W replacement is ok for your original 65W AC Adapter
Connectors: The connectors size must can fit into your laptop, such as 2.5mm*5.5mm
C. For Power Tool Batteries:
You can look at your device's model, or battery's Part No. on the bottom of your original battery.
Type: Lithium ion batteries (Li-Ion) are the newest technology in rechargeable batteries. They have a good power-to-weight ratio, has no memory effect, and safe to the environment. Nickle Metal Hydride (NiMH) is a newer technology, with moderate memory effect, safe to the environment, and sensitive to temperature. Nickle Cadmium (NiCd) is the oldest design, with high memory effect and toxic to the environment.
Please note some old original chargers only can charge NiCd batteries, you need new charger to charge NiMH and Li-Ion batteries.
Voltage: The Voltage must be the same of your original Battery Voltage.
i.e. Power tools usually use 12V, 14.4V, 18V, 20V, 40V Batteries and cannot be interchangable.
Capacity: Rechargeable Batteries will typically list their capacities in amp hours (Ah). A higher Ah rating means the battery will take longer to drain, giving your device a longer runtime per charge. It also usually bigger in size and weigh more than a standard battery.
i.e. 6.0Ah can replace your original 3.0Ah Rechargeable Battery
D. For Power Tool Chargers:
It must support your battery's voltage and type, such as 12V/18V/20V and Li-Ion/NiMh/NiCd
E. If you still are not sure, please contact us and we will pick the correct one for you.