SureFire SF18650B Rechargeable Lithium-Ion Battery
Sale price
$26.00
Regular price $28.50
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SureFire
SureFire SF18650B Rechargeable Lithium-Ion Battery
Sale price
$26.00
Regular price $28.50
SF18650B
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Questions about fit or compatibility?Our product support team can help before you order.Contact us
Shipping Information
Orders ship within the United States only and are typically processed in 1–2 business days. Delivery estimates and any free-shipping offers are shown at checkout. We do not ship internationally. Read our full Shipping Policy.
Returns
Unused items in their original packaging may be returned within 30 days of delivery. Optics that have been mounted or used may be inspected. Email support@dnrsports.com to start a return. Read our full Return & Refund Policy.
Warranty Information
Products are covered by their manufacturer's warranty; coverage and length vary by brand. We'll help you start a claim if needed — email support@dnrsports.com. Read our Warranty page.
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Product Overview
Overview
The SureFire SF18650B Rechargeable Lithium-Ion Battery is SureFire's protected 3500 mAh 18650 lithium-ion cell with an onboard Micro-USB charging port, made to power SureFire dual-fuel lights.
How It Compares
Browse all weapon lights & flashlights or the full SureFire range.
Ideal For
- SureFire dual-fuel light owners
- Reducing running costs vs primary cells
- Users wanting onboard USB charging
Key Features
- Capacity: 3500 mAh (3.5 Ah)
- Charging: Yes — Micro-USB charging port on the cell
- Protected: Yes (protected 18650)
- Warranty: SureFire No-Hassle Lifetime Warranty
Technical Specifications
| Chemistry | Lithium-ion |
| Voltage | 3.6V nominal (charges to 4.2V) |
| Capacity | 3500 mAh (3.5 Ah) |
| Protected | Yes (protected 18650) |
| Onboard Charging | Yes — Micro-USB charging port on the cell |
| Discharge Rate | 8-10A |
| Dimensions | 69.4 x 18.6 mm |
| Weight | 1.7 oz (49 g) |
| Recharge Time | ~8+ hours from fully depleted via USB |
| Powers | BSL-A Ballistic Shield Light, FURY-DFT, EDC2-DFT, FURY-IB-DF, M600DF, M640DF, M640DFT, and P1R series (dual-fuel / DF models) |
| SKU / MPN / UPC | SF18650B / SF18650B / 084871328050 |
Warranty
SureFire cover this cell under their two-year rechargeable-battery and charger warranty — not the lifetime warranty that applies to their lights.
US Shipping & Support
Shipped from the USA by D&R Sports Center. Questions about fit or setup? Contact us before you order and we'll help.
Frequently Asked Questions
Which lights does it fit?
BSL-A Ballistic Shield Light, FURY-DFT, EDC2-DFT, FURY-IB-DF, M600DF, M640DF, M640DFT, and P1R series (dual-fuel / DF models)
How do I charge it?
Through the onboard Micro-USB port on the cell — no separate charger needed.
What is the capacity?
3500 mAh (3.5 Ah)
Is it under the lifetime warranty?
No — SureFire cover rechargeable batteries for two years, not the lifetime term that applies to their lights.
What warranty does it carry?
SureFire's two-year rechargeable-battery warranty.
By the Numbers
Technical Specifications
- SKU
- SF18650B
- UPC
- 084871328050
- Battery Type
- Lithium-Ion Rechargeable (Protected 18650)
- Voltage
- 3.6 V
- Capacity
- 3,500 mAh
- Energy
- 12.6 Wh
- Charge Method
- Micro-USB or External Charger
- Charge Voltage
- 5.0 V (USB)
- Charge Current
- 600 mA ± 100 mA
- Discharge Rate
- 8–10A
- Charge Indicators
- Red (Charging) / Green (Fully Charged)
- Dimensions
- 69.4 x 18.6 mm
- Weight
- 1.7 oz (49 g)
- Compatibility
- SureFire Dual Fuel Lights (M600DF, M640DF, M640DFT, Fury DFT Series)
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