Home > Power Tool Batteries > JCB Power Tool Battery > JCB 21-20LI Battery

JCB 21-20LI Battery Replacement

The drill-battery.co.uk supplies high quality JCB 21-20LI power tool battery replacement, UK stock. Buy JCB 21-20LI battery with fast UK delivery & 1 year warranty.

We specialize in selling JCB 21-20LI battery, we are also dedicated to bring high quality JCB 21-20LI replacement battery to customers at reasonable prices with best customer service.

This is JCB 21-20LI 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!

Compare 4 replacement batteries

Check your tool model, battery connector and charger compatibility before ordering.

Capacity	Type	Price	Details
2,000 mAh18 V	Li-ion	£38.55In stock	View details
3,000 mAh18 V	Li-ion	£48.55In stock	View details
4,000 mAh18 V	Li-ion	£55.05In stock	View details
5,000 mAh18 V	Li-ion	£65.55In stock	View details

UK inland prices include VAT. Delivery: £4.70 for the first item; £2.00 for each additional item. Check individual battery details before purchasing.

We will dispatch the item from UK Local warehouse within 24 hours, Monday - Friday.
Our warehouse is located in Portsmouth, and we have sold the power tool batteries online for years, please do believe that, thank you.
JCB 21-20LI 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 JCB 21-20LI that you are going to buy fits the brand, model and part number of your device.

Check compatibility

Match your battery part number and tool model, then check the connector, voltage and charger before ordering.

Find a battery number or tool model

Compatible battery part numbers

JCB

Compatible tool models

JCB

Check compatibility

Match your battery part number and tool model, then check the connector, voltage and charger before ordering.

Find a battery number or tool model

Compatible battery part numbers

JCB

Compatible tool models

JCB

Check compatibility

Match your battery part number and tool model, then check the connector, voltage and charger before ordering.

Find a battery number or tool model

Compatible battery part numbers

JCB

Compatible tool models

JCB

Check compatibility

Match your battery part number and tool model, then check the connector, voltage and charger before ordering.

Find a battery number or tool model

Compatible battery part numbers

JCB

Compatible tool models

JCB

JCB 21-20LI Replacement Battery UK - High Performance at a Lower Price.

Upgrade your JCB power tools with the JCB 21-20LI Replacement Battery, engineered to deliver equal or better performance than OEM - at a more affordable price.
This 100% compatible replacement for the JCB 21-20LI is built with premium Sony battery cells, ensuring long-lasting power, safety, and reliability. It has been rigorously tested for safety compliance and high performance, so you can work with confidence on every job.

Key Features:

Fully Compatible - Works seamlessly with all tools using the JCB 21-20LI battery.
OEM-Level Performance - Meets or exceeds the original manufacturer's specifications.
Premium Sony Cells - Proven durability and stable output.
Safe & Reliable - Overcharge, overheat, and short-circuit protection.
Easy Charging - Compatible with your original JCB battery charger.

Whether you're replacing a worn-out battery or adding a spare to your kit, this JCB 21-20LI battery replacement keeps your tools running at peak performance - without the OEM price tag. Order today for fast UK delivery and a 1-year warranty.

This JCB 21-20LI 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.

FAQ What is the difference between Ni-Cad and Ni-MH Batteries?

A The main difference between Ni-Cad and Ni-MH batteries is the energy density and the reduced crystalization (memory) of the Nimh battery. Ni-MH (Nickel Metal Hydride) batteries have more energy and will not be as prone to "memory" as Ni-Cad (Nickel Cadium). The Ni-Cad is known as the workhorse of the portable battery industry and is high cycling solid performer but if not charged/discharged properly will be prone to develope memory.

Battery memory effect how to avoid it?

To avoid the "memory effect" you should perform a "full recharge cycle", Run the device under the battery's power until it shuts down or until you get a low battery warning. Then recharge the battery as instructed in the user's manual.
Ni-Cad batteries accept around 500 full recharge cycles.
Ni-Cad batteries cannot be fully discharged (voltage below 1 V per cell). This damages the battery.
When not in use, NiCd batteries lose 1% of their charge per day. After three and a half months, the battery is completely discharged, damaging the battery. Don't expose Ni-Cad batteries to high temperatures.
Batteries not based on Cadmium do not suffer from "memory effect".

Disclaimer:
The batteries and other products supplied by our Company are [replacement for] sold for use with certain product manufacturers, and any reference to products or trademarks of such companies is purely for the purpose of identifying the manufacturers with which our products [are replacement for] may be used. Our Company and this Web site are neither affiliated with, authorized by, licensed by, distributors for, nor related in any way to these manufacturers, nor are the products offered for sale through our web site manufactured by or sold with the authorization of the manufacturers with which our products [are replacement for] may be used.