As an Amazon Associate I earn from qualifying purchases.Updated: March 26, 2026
The Battery in your Black+Decker LST140 provides the power necessary to run the device. Over time, like all rechargeable batteries, its capacity diminishes. This leads to reduced runtime and eventually prevents the LST140 from functioning properly. Replacing the Battery every 18 months ensures optimal performance.
Function: Provides the electrical energy needed for the Black+Decker LST140 to operate.
Signs it needs replacing: Noticeable decrease in runtime, difficulty holding a charge, or the device failing to power on.
OEM vs aftermarket: OEM batteries (branded by Black+Decker) are generally more expensive but may offer slightly better performance. Aftermarket options are often cheaper and can be just as reliable if chosen from reputable brands.
Installation: Usually straightforward, involving removing a cover and disconnecting/connecting the battery connector. Refer to your LST140's user manual for specific instructions.
Replacement schedule: every 18 months
Compatibility warning: always verify part number BD1200 matches your exact model (LST140) before ordering
Pros & Cons
Pros
✓ Restores device to original performance without buying a new unit
✓ Significantly cheaper than a full device replacement
✓ Multiple options available from OEM and aftermarket sellers
Cons
✗ OEM parts cost more than third-party alternatives
✗ Wrong part number will not fit — model verification is essential
Common Use Cases
Scheduled maintenance on the every 18 months replacement cycle
Performance restoration after noticing reduced output or efficiency
Preventive replacement before a worn part causes secondary damage
Who Should Buy This
This replacement Battery is ideal for owners of a Black+Decker LST140 whose device is experiencing reduced performance due to a worn-out Battery and who want to extend the life of their tool.
Not ideal for: If your LST140 is extensively damaged or outdated, replacing the entire unit might be more cost-effective in the long run.
Good to Know Before Buying
💡
Always confirm your exact model number (LST140) before ordering. Part numbers vary between model variants and production years. Check the label on your device or original documentation to be sure.
Frequently Asked Questions
What is the part number for the Black+Decker LST140 Battery?
The part number is BD1200. Always verify this matches your exact model (LST140) before ordering, as similar models may use different parts.
How often should I replace the Battery on my Black+Decker LST140?
every 18 months
Will aftermarket Battery replacements work in my Black+Decker LST140?
Third-party parts are widely available and often cheaper than OEM. Look for listings that specifically mention compatibility with model LST140 and check buyer reviews for fit confirmation before purchasing.
Prices change frequently. See the latest deal on Amazon.