Laptop Battery for Lenovo B40 E40-30 B40-70 B50-70 B40-80 E40-70, 11.4V 2200mAh, Replaces 5B10G83335 5B10G83336 5B10G83337, 12-Month Warranty

**Important Voltage Warning**
Please confirm your original battery voltage is 11.4V before purchasing. Using an incorrect voltage may cause damage to your laptop or battery. This battery is NOT compatible with 10.8V or 14.4V models.

**Compatible Laptop Models (Includes but not limited to): **
- Lenovo B40-70, B40-70A, B40-70 Touch
- Lenovo B40-80, B40-80 Touch
- Lenovo B50-70, B50-70 Touch
- Lenovo B50-80, B50-80 Touch
- Lenovo E40-30, E40-70, E40-70A, E40-80
- Lenovo B40-45, B50-45, E40-45
- Also compatible with Lenovo B40, B50, E40 series notebooks using 11.4V batteries

**Replaces OEM Part Numbers: **
5B10G83335, 5B10G83336, 5B10G83337, 5B10G83338, 5B10G83339, 5B10G83340, 5B10G83341, 5B10G83342, 5B10G83343, 5B10G83344

**Specifications: **
- Battery Type: Li-ion
- Voltage: 11.4V
- Capacity: 2200mAh / 24Wh
- Cells: 2-cell
- Color: Black
- Certification: CE, FCC, RoHS

**Comparison Table: **

| Feature | Our Battery | Generic Low-Quality Battery |
|---------|-------------|----------------------------|
| Capacity | 2200mAh (genuine grade) | Often overrated or degraded |
| Safety Protection | Overcharge, over-discharge, short-circuit | May lack protection circuits |
| Cell Quality | Grade A cells | Recycled or unknown cells |
| Warranty | 12 months | Usually 3-6 months |
| Compatibility | Tested for exact fit | May have loose connection |

**Installation Tips: **

1. Turn off your laptop and unplug the AC adapter.

2. Remove the battery latch or unscrew the battery compartment (if applicable).

3. Slide out the old battery and insert the new one until it clicks into place.

4. Charge the battery fully before first use (about 4-6 hours).

5. For optimal lifespan, avoid draining the battery completely before recharging.

**Whats in the Box: **
- 1 x 11.4V Laptop Battery


**Note: **
- This battery is a compatible replacement, not an OEM Lenovo product.
- Please double-check your laptop model and original battery part number before ordering.
- If you are unsure about compatibility, feel free to contact us with your laptop serial number.