Your Cart: £0.00

Spend £100.00 more for free shipping!

View Cart and Checkout
Free UK shipping over £100
Overlander 2000mAh 3.7V 18650 Li-Ion Battery

Overlander 2000mAh 3.7V 18650 Li-Ion Battery

Brand: Overlander

Part No: OL-3440

£3.32 RRP £3.49

Usually ships same day

UK Delivery
Get it by Friday 9th Oct (Order within 19h 9m)
Store Collection (Cannock)
Tomorrow

Finance options available at checkout.

Request Price Match Ask a Question Write a Review

Customers Also Buy

Popular with customers who buy products like the Overlander 2000mAh 3.7V 18650 Li-Ion Battery

Overlander Lipo Safety Charge Sack Overlander Lipo Safety Charge Sack
£7.59
Overlander Male Deans to Female XT60 Adapter Plug Overlander Male Deans to Female XT60 Adapter Plug
£1.70
Male Deans to Female Traxxas TRX Conversion Lead (CR147) Male Deans to Female Traxxas TRX Conversion Lead (CR147)
£2.84
Overlander EC5 connectors (male & female) - 2 Pairs Overlander EC5 connectors (male & female) - 2 Pairs
£3.78
Overlander EC5 (Male) to XT60 (Female) Adapter Lead Overlander EC5 (Male) to XT60 (Female) Adapter Lead
£3.13
Overlander XT60 to 4mm Charge lead Overlander XT60 to 4mm Charge lead
£3.41
Overlander EC5 (Female) to Deans (Male) Conversion Lead Overlander EC5 (Female) to Deans (Male) Conversion Lead
£2.75
Overlander EC5 to 4mm Charge Lead Overlander EC5 to 4mm Charge Lead
£4.74
eTronix 3S 30cm Balance Lead Extension Wire eTronix 3S 30cm Balance Lead Extension Wire
£1.89
Radient Mistral LED LiPo/NiMH 5A Charger Radient Mistral LED LiPo/NiMH 5A Charger
£32.54
eTronix Powerpal 3.0 AC/DC Performance Charger/Discharger - 80W 10A eTronix Powerpal 3.0 AC/DC Performance Charger/Discharger - 80W 10A
£46.49
eTronix 2S 30cm Balance Lead Extension Wire eTronix 2S 30cm Balance Lead Extension Wire
£1.89

Description

The Overlander 2000mAh 3.7V 18650 Li-Ion Battery (OL-3440) is a single-cell 1S lithium-ion designed in the popular 18650 format. Delivering 2000mAh capacity at a nominal 3.7V and rated at 7.4Wh, it offers dependable energy in a compact form factor.

Built to Overlander’s standards, this cell suits applications requiring an 18650-size Li-Ion power source where consistent performance and straightforward integration are important.

Key Specifications

  • Chemistry: Lithium Ion (Li-Ion)
  • Cell Size: 18650
  • Capacity: 2000mAh
  • Voltage: 3.7V
  • Cell Count: 1S
  • Watt Hours: 7.4Wh
  • Length: 65mm
  • Width: 18mm
Free Shipping

On UK Orders over £100
Happy to Help

Helpful, friendly advice
28 Day Returns

Easy returns process
Secure Payments

Secured by Stripe

Specifications




Overlander 2000mAh 3.7V 18650 Li-Ion Battery Specification:
  • SKU: 3440
  • Chemistry: Lithium Ion (Li-Ion)
  • Cell Size: 18650
  • Capacity (mAh): 2000
  • Voltage: 3.7V
  • Cell Count: 1S
  • Watt Hours: 7.4Wh
  • Length (mm): 65
  • Width (mm): 18



Key Info:
  • Brand: Overlander
  • Part No: OL-3440
  • Barcode: 5060470213589

Delivery & Returns

Standard Shipping

£3.95 to most of the UK

Express Shipping

£6.95 to most of the UK

Worldwide Shipping

Available at checkout

Customer Reviews

No specific product reviews yet, why not write one?
Write a Review
All reviews are subject to moderation

Questions & Answers

Real questions from real customers. Why not ask your own?
Hi, do you stock a charger for this battery?
Gordon / 27th August 2026
Ask a Question
Get early access to deals and new arrivals.
Use this form to ask us a quick one sentence question about this specific product. Do not enter anything you would not like displayed on our site.

For more in depth queries, please contact us.