UK Electric Tools Battery Store > Cordless Drill Batteries > BLACK & DECKER Cordless Tool Battery > BLACK & DECKER NS118 Battery
BLACK & DECKER NS118 Battery Replacement
Power your new drills for longer with long-lasting power tool batteries from batteryfast! Shop now and find batteries for top brands.
BLACK & DECKER NS118 batteries, drill-battery.shop supply high quality BLACK & DECKER NS118 cordless tool battery replacement, UK stock. Buy BLACK & DECKER NS118 battery with 1 year warranty.
We specialize in selling BLACK & DECKER NS118 battery, we are also dedicated to bring high quality BLACK & DECKER NS118 replacement battery to customers at reasonable prices with best customer service.
This is BLACK & DECKER NS118 Replacement battery, non-original battery, can replace the following original batteries part numbers, specifications backed by full 1 year warranty guarantee and 30 days money back gurantee! Shipped fast! (Special Delivery: 1-2 days, Registered Delivery: 3-4 days). The more you buy the more you save!
| There are 6 BLACK & DECKER NS118 Replacement batteries for cordless tool below. The only difference among them is the capacity, battery with larger capacity lasts longer after being fully charged, pls note. Our BLACK & DECKER NS118 Replacement batteries can be charged by your original charger, don't worry about this. Please click the image for more details. Then Add to cart to order the one you selected. We will dispatch the Royal Mail within 24 hours, Monday - Friday. | |||||
| Image | Type | Color | Volt | Capacity | Price |
 |
Ni-Cad | black | 18V | 1300mAh | UK £28.02 |
 |
Ni-Cad | Grey | 18V | 1500mAh | UK £28.55 |
 |
Ni-Cad | Black | 18V | 1700mAh | UK £29.27 |
 |
Ni-MH | black | 18V | 2000mAh | UK £30.55 |
 |
Ni-MH | Grey | 18V | 3000mAh | UK £34.55 |
 |
Ni-MH | Black | 18V | 3500mAh | UK £38.02 |
All batteries dispatch from UK Local warehouse within 24 hours, Monday - Friday.
Our warehouse located in Salford, Greater Manchester, United Kingdom, drill batteries, vacuum batteries ongoing promotions and fast delivery everywhere in UK.
BLACK & DECKER NS118 Replacement battery are guaranteed to meet or exceed OEM(original) specifications backed, it conforms with the exact specification of the original manufacturer and the battery is guaranteed against all manufacturing defects. All of our products are 1 year warranty guarantee and 30 days money back gurantee! Shipped fast! Please ensure this BLACK & DECKER NS118 Replacement battery that you are going to buy fits the brand, model and part number of your device.
Our warehouse located in Salford, Greater Manchester, United Kingdom, drill batteries, vacuum batteries ongoing promotions and fast delivery everywhere in UK.
BLACK & DECKER NS118 Replacement battery are guaranteed to meet or exceed OEM(original) specifications backed, it conforms with the exact specification of the original manufacturer and the battery is guaranteed against all manufacturing defects. All of our products are 1 year warranty guarantee and 30 days money back gurantee! Shipped fast! Please ensure this BLACK & DECKER NS118 Replacement battery that you are going to buy fits the brand, model and part number of your device.
This BLACK & DECKER NS118 battery replacement can replace the following part numbers: (Please use "Ctrl + F" )
BLACK & DECKER
- 244760-00
- A1718
- A18
- A18-XJ
- A18E
- A18E-XJ
- A18NH
- FIRESTORM A18
- FSB18
- HPB18
This BLACK & DECKER NS118 battery replacement is compatible with the following models: (Please use "Ctrl + F" )
BLACK & DECKER
- PS18K2
- PS182KB
- NST2018
- NST1810
- NS118
- NPT3118
- NPP2018
- NHT518
- HPB188F2B
- HPB 188F2B
- HP188FBT
- hp188f4bk
- HP188F3B
- hp188f3
- hp188f2k
- HP188F2B
- HP 1HP188F2B
- HP 188FBT
- HP 188F4BK
- HP 188F3B
- HP 188F3
- HP 188F2K
- HP 188F2B
- GTC800
- GTC610
- GTC 800
- GTC 610
- GT1850N
- GT1850
- GT 1850N
- GT 1850
- GPC1800
- GPC 1800
- GLC2500
- GLC1825
- GLC 2500
- GLC 1825
- GKC1817P
- GKC1817NH
- GKC1817
- GKC1000
- GKC 1817P
- GKC 1817NH
- GKC 1817
- GKC 1000
- GCO18SFB
- GCO 18SFB
- FS18RS
- FS18HV
- FS18CS
- FS188F4
- FS1806CSL
- FS1802S
- FS1800RS
- FS1800JS
- FS1800CS
- FS 18RS
- FS 18HV
- FS 18CS
- FS 188F4
- FS 1806CSL
- FS 1802S
- FS 1800RS
- FS 1800JS
- FS 1800CS
- EPC18K2
- EPC18CAK
- EPC18CABK
- epc18ca
- epc188bk
- EPC188
- EPC186
- EPC182K2
- EPC18
- EPC 18K2
- EPC 18CAK
- EPC 18CABK
- EPC 18CA
- EPC 188BK
- EPC 188
- EPC 186
- EPC 182K2
- EPC 18
- CDC18GK2
- CDC180ASB
- CDC 18GK2
- CDC 180ASB
- BD18PSK
- BD 18PSK88F2B
All batteries dispatch from UK Local warehouse within 24 hours, Monday - Friday.
Our warehouse located in Salford, Greater Manchester, United Kingdom, drill batteries, vacuum batteries ongoing promotions and fast delivery everywhere in UK.
BLACK & DECKER NS118 Replacement battery are guaranteed to meet or exceed OEM(original) specifications backed, it conforms with the exact specification of the original manufacturer and the battery is guaranteed against all manufacturing defects. All of our products are 1 year warranty guarantee and 30 days money back gurantee! Shipped fast! Please ensure this BLACK & DECKER NS118 Replacement battery that you are going to buy fits the brand, model and part number of your device.
Our warehouse located in Salford, Greater Manchester, United Kingdom, drill batteries, vacuum batteries ongoing promotions and fast delivery everywhere in UK.
BLACK & DECKER NS118 Replacement battery are guaranteed to meet or exceed OEM(original) specifications backed, it conforms with the exact specification of the original manufacturer and the battery is guaranteed against all manufacturing defects. All of our products are 1 year warranty guarantee and 30 days money back gurantee! Shipped fast! Please ensure this BLACK & DECKER NS118 Replacement battery that you are going to buy fits the brand, model and part number of your device.
This BLACK & DECKER NS118 battery replacement can replace the following part numbers: (Please use "Ctrl + F" )
BLACK & DECKER
- A1718
- A18
- A18-XJ
- A18E
- A18E-XJ
- A18NH
- FIRESTORM A18
- FSB18
This BLACK & DECKER NS118 battery replacement is compatible with the following models: (Please use "Ctrl + F" )
BLACK & DECKER
- PS18K2
- PS182KB
- NST2018
- NST1810
- NS118
- NPT3118
- NPP2018
- NHT518
- HPB188F2B
- HPB 188F2B
- HP188FBT
- hp188f4bk
- HP188F3B
- hp188f3
- hp188f2k
- HP188F2B
- HP 188FBT
- HP 188F4BK
- HP 188F3B
- HP 188F3
- HP 188F2K
- HP 188F2B
- GTC800
- GTC610
- GTC 800
- GTC 610
- GT1850N
- GT1850
- GT 1850N
- GT 1850
- GPC1800
- GPC 1800
- GLC2500
- GLC1825
- GLC 2500
- GLC 1825
- GKC1817P
- GKC1817NH
- GKC1817
- GKC1000
- GKC 1817P
- GKC 1817NH
- GKC 1817
- GKC 1000
- GCO18SFB
- GCO 18SFB
- FS18RS
- FS18HV
- FS18CS
- FS188F4
- FS1806CSL
- FS1802S
- FS1800RS
- FS1800JS
- FS1800CS
- FS 18RS
- FS 18HV
- FS 18CS
- FS 188F4
- FS 1806CSL
- FS 1802S
- FS 1800RS
- FS 1800JS
- FS 1800CS
- EPC18K2
- EPC18CAK
- EPC18CABK
- epc18ca
- epc188bk
- EPC188
- EPC186
- EPC182K2
- EPC18
- EPC 18K2
- EPC 18CAK
- EPC 18CABK
- EPC 18CA
- EPC 188BK
- EPC 188
- EPC 186
- EPC 182K2
- EPC 18
- CDC18GK2
- CDC180ASB
- CDC 18GK2
- CDC 180ASB
- BD18PSK
- BD 18PSK
All batteries dispatch from UK Local warehouse within 24 hours, Monday - Friday.
Our warehouse located in Salford, Greater Manchester, United Kingdom, drill batteries, vacuum batteries ongoing promotions and fast delivery everywhere in UK.
BLACK & DECKER NS118 Replacement battery are guaranteed to meet or exceed OEM(original) specifications backed, it conforms with the exact specification of the original manufacturer and the battery is guaranteed against all manufacturing defects. All of our products are 1 year warranty guarantee and 30 days money back gurantee! Shipped fast! Please ensure this BLACK & DECKER NS118 Replacement battery that you are going to buy fits the brand, model and part number of your device.
Our warehouse located in Salford, Greater Manchester, United Kingdom, drill batteries, vacuum batteries ongoing promotions and fast delivery everywhere in UK.
BLACK & DECKER NS118 Replacement battery are guaranteed to meet or exceed OEM(original) specifications backed, it conforms with the exact specification of the original manufacturer and the battery is guaranteed against all manufacturing defects. All of our products are 1 year warranty guarantee and 30 days money back gurantee! Shipped fast! Please ensure this BLACK & DECKER NS118 Replacement battery that you are going to buy fits the brand, model and part number of your device.
This BLACK & DECKER NS118 battery replacement can replace the following part numbers: (Please use "Ctrl + F" )
BLACK & DECKER
- 244760-00
- A1718
- A18
- A18-XJ
- A18E
- A18E-XJ
- A18NH
- FIRESTORM A18
- FSB18
- HPB18
This BLACK & DECKER NS118 battery replacement is compatible with the following models: (Please use "Ctrl + F" )
BLACK & DECKER
- PS18K2
- PS182KB
- NST2018
- NST1810
- NS118
- NPT3118
- NPP2018
- NHT518
- HPB188F2B
- HPB 188F2B
- HP188FBT
- hp188f4bk
- HP188F3B
- hp188f3
- hp188f2k
- HP188F2B
- HP 188FBT
- HP 188F4BK
- HP 188F3B
- HP 188F3
- HP 188F2K
- HP 188F2B
- GTC800
- GTC610
- GTC 800
- GTC 610
- GT1850N
- GT1850
- GT 1850N
- GT 1850
- GPC1800
- GPC 1800
- GLC2500
- GLC1825
- GLC 2500
- GLC 1825
- GKC1817P
- GKC1817NH
- GKC1817
- GKC1000
- GKC 1817P
- GKC 1817NH
- GKC 1817
- GKC 1000
- GCO18SFB
- GCO 18SFB
- FS18RS
- FS18HV
- FS18CS
- FS188F4
- FS1806CSL
- FS1802S
- FS1800RS
- FS1800JS
- FS1800CS
- FS 18RS
- FS 18HV
- FS 18CS
- FS 188F4
- FS 1806CSL
- FS 1802S
- FS 1800RS
- FS 1800JS
- FS 1800CS
- EPC18K2
- EPC18CAK
- EPC18CABK
- epc18ca
- epc188bk
- EPC188
- EPC186
- EPC182K2
- EPC18
- EPC 18K2
- EPC 18CAK
- EPC 18CABK
- EPC 18CA
- EPC 188BK
- EPC 188
- EPC 186
- EPC 182K2
- EPC 18
- CDC18GK2
- CDC180ASB
- CDC 18GK2
- CDC 180ASB
- BD18PSK
- BD 18PSK
All batteries dispatch from UK Local warehouse within 24 hours, Monday - Friday.
Our warehouse located in Salford, Greater Manchester, United Kingdom, drill batteries, vacuum batteries ongoing promotions and fast delivery everywhere in UK.
BLACK & DECKER NS118 Replacement battery are guaranteed to meet or exceed OEM(original) specifications backed, it conforms with the exact specification of the original manufacturer and the battery is guaranteed against all manufacturing defects. All of our products are 1 year warranty guarantee and 30 days money back gurantee! Shipped fast! Please ensure this BLACK & DECKER NS118 Replacement battery that you are going to buy fits the brand, model and part number of your device.
Our warehouse located in Salford, Greater Manchester, United Kingdom, drill batteries, vacuum batteries ongoing promotions and fast delivery everywhere in UK.
BLACK & DECKER NS118 Replacement battery are guaranteed to meet or exceed OEM(original) specifications backed, it conforms with the exact specification of the original manufacturer and the battery is guaranteed against all manufacturing defects. All of our products are 1 year warranty guarantee and 30 days money back gurantee! Shipped fast! Please ensure this BLACK & DECKER NS118 Replacement battery that you are going to buy fits the brand, model and part number of your device.
This BLACK & DECKER NS118 battery replacement can replace the following part numbers: (Please use "Ctrl + F" )
BLACK & DECKER
- 244760-00
- A1718
- A18
- A18-XJ
- A18E
- A18E-XJ
- A18NH
- FIRESTORM A18
- FSB18
- HPB18
This BLACK & DECKER NS118 battery replacement is compatible with the following models: (Please use "Ctrl + F" )
BLACK & DECKER
- PS18K2
- PS182KB
- NST2018
- NST1810
- NS118
- NPT3118
- NPP2018
- NHT518
- HPB188F2B
- HPB 188F2B
- HP188FBT
- hp188f4bk
- HP188F3B
- hp188f3
- hp188f2k
- HP188F2B
- HP 188FBT
- HP 188F4BK
- HP 188F3B
- HP 188F3
- HP 188F2K
- HP 188F2B
- GTC800
- GTC610
- GTC 800
- GTC 610
- GT1850N
- GT1850
- GT 1850N
- GT 1850
- GPC1800
- GPC 1800
- GLC2500
- GLC1825
- GLC 2500
- GLC 1825
- GKC1817P
- GKC1817NH
- GKC1817
- GKC1000
- GKC 1817P
- GKC 1817NH
- GKC 1817
- GKC 1000
- GCO18SFB
- GCO 18SFB
- FS18RS
- FS18HV
- FS18CS
- FS188F4
- FS1806CSL
- FS1802S
- FS1800RS
- FS1800JS
- FS1800CS
- FS 18RS
- FS 18HV
- FS 18CS
- FS 188F4
- FS 1806CSL
- FS 1802S
- FS 1800RS
- FS 1800JS
- FS 1800CS
- EPC18K2
- EPC18CAK
- EPC18CABK
- epc18ca
- epc188bk
- EPC188
- EPC186
- EPC182K2
- EPC18
- EPC 18K2
- EPC 18CAK
- EPC 18CABK
- EPC 18CA
- EPC 188BK
- EPC 188
- EPC 186
- EPC 182K2
- EPC 18
- CDC18GK2
- CDC180ASB
- CDC 18GK2
- CDC 180ASB
- BD18PSK
- BD 18PSK
All batteries dispatch from UK Local warehouse within 24 hours, Monday - Friday.
Our warehouse located in Salford, Greater Manchester, United Kingdom, drill batteries, vacuum batteries ongoing promotions and fast delivery everywhere in UK.
BLACK & DECKER NS118 Replacement battery are guaranteed to meet or exceed OEM(original) specifications backed, it conforms with the exact specification of the original manufacturer and the battery is guaranteed against all manufacturing defects. All of our products are 1 year warranty guarantee and 30 days money back gurantee! Shipped fast! Please ensure this BLACK & DECKER NS118 Replacement battery that you are going to buy fits the brand, model and part number of your device.
Our warehouse located in Salford, Greater Manchester, United Kingdom, drill batteries, vacuum batteries ongoing promotions and fast delivery everywhere in UK.
BLACK & DECKER NS118 Replacement battery are guaranteed to meet or exceed OEM(original) specifications backed, it conforms with the exact specification of the original manufacturer and the battery is guaranteed against all manufacturing defects. All of our products are 1 year warranty guarantee and 30 days money back gurantee! Shipped fast! Please ensure this BLACK & DECKER NS118 Replacement battery that you are going to buy fits the brand, model and part number of your device.
This BLACK & DECKER NS118 battery replacement can replace the following part numbers: (Please use "Ctrl + F" )
BLACK & DECKER
- 244760-00
- A1718
- A18
- A18-XJ
- A18E
- A18E-XJ
- A18NH
- FIRESTORM A18
- FSB18
- HPB18
This BLACK & DECKER NS118 battery replacement is compatible with the following models: (Please use "Ctrl + F" )
BLACK & DECKER
- PS18K2
- PS182KB
- NST2018
- NST1810
- NS118
- NPT3118
- NPP2018
- NHT518
- HPB188F2B
- HPB 188F2B
- HP188FBT
- hp188f4bk
- HP188F3B
- hp188f3
- hp188f2k
- HP188F2B
- HP 188FBT
- HP 188F4BK
- HP 188F3B
- HP 188F3
- HP 188F2K
- HP 188F2B
- GTC800
- GTC610
- GTC 800
- GTC 610
- GT1850N
- GT1850
- GT 1850N
- GT 1850
- GPC1800
- GPC 1800
- GLC2500
- GLC1825
- GLC 2500
- GLC 1825
- GKC1817P
- GKC1817NH
- GKC1817
- GKC1000
- GKC 1817P
- GKC 1817NH
- GKC 1817
- GKC 1000
- GCO18SFB
- GCO 18SFB
- FS18RS
- FS18HV
- FS18CS
- FS188F4
- FS1806CSL
- FS1802S
- FS1800RS
- FS1800JS
- FS1800CS
- FS 18RS
- FS 18HV
- FS 18CS
- FS 188F4
- FS 1806CSL
- FS 1802S
- FS 1800RS
- FS 1800JS
- FS 1800CS
- EPC18K2
- EPC18CAK
- EPC18CABK
- epc18ca
- epc188bk
- EPC188
- EPC186
- EPC182K2
- EPC18
- EPC 18K2
- EPC 18CAK
- EPC 18CABK
- EPC 18CA
- EPC 188BK
- EPC 188
- EPC 186
- EPC 182K2
- EPC 18
- CDC18GK2
- CDC180ASB
- CDC 18GK2
- CDC 180ASB
- BD18PSK
- BD 18PSK
All batteries dispatch from UK Local warehouse within 24 hours, Monday - Friday.
Our warehouse located in Salford, Greater Manchester, United Kingdom, drill batteries, vacuum batteries ongoing promotions and fast delivery everywhere in UK.
BLACK & DECKER NS118 Replacement battery are guaranteed to meet or exceed OEM(original) specifications backed, it conforms with the exact specification of the original manufacturer and the battery is guaranteed against all manufacturing defects. All of our products are 1 year warranty guarantee and 30 days money back gurantee! Shipped fast! Please ensure this BLACK & DECKER NS118 Replacement battery that you are going to buy fits the brand, model and part number of your device.
Our warehouse located in Salford, Greater Manchester, United Kingdom, drill batteries, vacuum batteries ongoing promotions and fast delivery everywhere in UK.
BLACK & DECKER NS118 Replacement battery are guaranteed to meet or exceed OEM(original) specifications backed, it conforms with the exact specification of the original manufacturer and the battery is guaranteed against all manufacturing defects. All of our products are 1 year warranty guarantee and 30 days money back gurantee! Shipped fast! Please ensure this BLACK & DECKER NS118 Replacement battery that you are going to buy fits the brand, model and part number of your device.
This BLACK & DECKER NS118 battery replacement can replace the following part numbers: (Please use "Ctrl + F" )
BLACK & DECKER
- 244760-00
- A1718
- A18
- A18 FIRESTORM
- A18-XJ
- A18E
- A18E-XJ
- A18NH
- FIRESTORM A18
- FSB18
- HPB18
This BLACK & DECKER NS118 battery replacement is compatible with the following models: (Please use "Ctrl + F" )
BLACK & DECKER
- PS18K2
- PS182KB
- NST2018
- NST1810
- NS118
- NPT3118
- NPP2018
- NHT518
- HPB188F2B
- HPB 188F2B
- HP188FBT
- hp188f4bk
- HP188F3B
- hp188f3
- hp188f2k
- HP188F2B
- HP 188FBT
- HP 188F4BK
- HP 188F3B
- HP 188F3
- HP 188F2K
- HP 188F2B
- GTC800
- GTC610
- GTC 800
- GTC 610
- GT1850N
- GT1850
- GT 1850N
- GT 1850
- GPC1800
- GPC 1800
- GLC2500
- GLC1825
- GLC 2500
- GLC 1825
- GKC1817P
- GKC1817NH
- GKC1817
- GKC1000
- GKC 1817P
- GKC 1817NH
- GKC 1817
- GKC 1000
- GCO18SFB
- GCO 18SFB
- FS18RS
- FS18HV
- FS18CS
- FS188F4
- FS1806CSL
- FS1802S
- FS1800RS
- FS1800JS
- FS1800CS
- FS 18RS
- FS 18HV
- FS 18CS
- FS 188F4
- FS 1806CSL
- FS 1802S
- FS 1800RS
- FS 1800JS
- FS 1800CS
- EPC18K2
- EPC18CAK
- EPC18CABK
- epc18ca
- epc188bk
- EPC188
- EPC186
- EPC182K2
- EPC18
- EPC 18K2
- EPC 18CAK
- EPC 18CABK
- EPC 18CA
- EPC 188BK
- EPC 188
- EPC 186
- EPC 182K2
- EPC 18
- CDC18GK2
- CDC180ASB
- CDC 18GK2
- CDC 180ASB
- BD18PSK
- BD 18PSK
Our Ni-Mh battery can be charged by your original Ni-cd charger, don't worry about this.
Did you know? BLACK & DECKER NS118 Replacement batteries have the same performance standards as OEM electric tool batteries, but are in cheap cost.
This BLACK & DECKER NS118 battery replacement has been manufactured with high quality components. It conforms with the exact specification of the original manufacturer and the battery is guaranteed against all manufacturing defects.
For all power tool batteries a margin of 0.2V difference in the voltage is safe. If the capacity (Ah) of the battery is higher than the capacity of the original battery it will enable a longer life expectancy.
As part of our ISO 9001 quality procedure, quality control tests are frequently carried out on all our products.
For all power tool batteries a margin of 0.2V difference in the voltage is safe. If the capacity (Ah) of the battery is higher than the capacity of the original battery it will enable a longer life expectancy.
As part of our ISO 9001 quality procedure, quality control tests are frequently carried out on all our products.
Q: How long a power tools battery pack could be last?
A: Drill batteries come with many different cell types and technologies and these can have a large impact on the overall lifespan of a battery.
NiCD and NiMH drill battery packs: modern NiMH battery packs from Batteryfast achieve approximately 360-500 charging cycles before they fall below 80% residual charge.
Lithium tool batteries and power packs: modern lithium battery packs from Batteryfast achieve approximately 750-1000 charging cycles before they fall below 80% residual charge - with one charge cycle equating to a complete charge from 0% to 100%.
How to Choose The Best Electric & Cordless Power Tool Battery Replacement?
- For purposes of compatibility, stick to one manufacturer as well as battery type. This is because not all platforms conform to the same compatibility for tools, and switching is likely to mess up your machine and inconvenience you as well.
- Choose a platform that gives you many options for your machine. For instance, the fact that Nickel is becoming scarce should lead you to make a choice that leans more towards lithium-ion.
- Find out the model number of the battery you're looking to replace and make sure any replacement battery you purchase is 100% compatible with this model.
- The voltage you select should be the one that is more suitable for the type of work you are carrying out. If you work is that of handy types, then you could go for 12V, as it's a lightweight and small in size.
BLACK & DECKER NS118 Cordless Drill Battery Secure & Guarantee
This Power Tool battery you purchased from us is guaranteed!
We warranty this cordless drill battery sold in our website, other than explicitly stated, are 100% brand new and free from defects in material and workmanship.
Avoid storing drill batteries in hot temperatures and avoid storing them in cold temperatures.
Charge your tool batteries gently, avoiding too low and high charge levels. Never let your drill's battery level drop down beyond a minimum of 20% charge and beyond a maximum of 80% charge.
Wipe your Power Tool Battery with Alcohol and Cotton Swabs. This will keep it clean as required thus enabling it have a longer life.
- 100% Q.C. of this BLACK & DECKER NS118 battery.
- This NS118 cordless drill battery replacement is guaranteed to meet or exceed original specifications.
- This NS118 battery replacement is sell with 1 year Warranty.
- This BLACK & DECKER NS118 battery replacement is sell with 30 Days Money Back.
Avoid storing drill batteries in hot temperatures and avoid storing them in cold temperatures.
Charge your tool batteries gently, avoiding too low and high charge levels. Never let your drill's battery level drop down beyond a minimum of 20% charge and beyond a maximum of 80% charge.
Wipe your Power Tool Battery with Alcohol and Cotton Swabs. This will keep it clean as required thus enabling it have a longer life.
