| Quantity | Price/Ea. |
|---|---|
| 5-24 | $10.75 |
| 25-49 | $8.96 |
| 50+ | $7.17 |
Product Specifications for Ultralast 18650 Button Top Rechargeable Battery (3.7V, 2.6Ah, Li-Ion)
| BM Part #: | LION-1865-26 |
|---|---|
| Voltage: | 3.7 Volt |
| Capacity: | 2600 mAh |
| Terminals: | Button Top |
| Type: | Li-Ion |
| Battery Size: | 18650 |
| Length: | 2.6" |
| Diameter: | 0.8" |
| Shipping Weight: | 0.15Lbs (2.4 oz) |
| Warranty: | 1 Year |
- 2600mAh Capacity: Provides long-lasting runtime to keep your flashlight or device powered through extended use.
- 3.7V Output: Delivers consistent voltage that matches your device's original power requirements.
- Meets or Exceeds OEM Specs: Engineered to match manufacturer specifications for a reliable, drop-in replacement.
- Wide Compatibility: Cross-references with the Fenix TK35, WF-501B, ICR18650, LIR18650, Power Drive, and more.
- Compact & Lightweight: Measures 2.6 x 0.8 in and weighs just 1.8 oz - easy to toss in a bag as a backup.
- Standard Consumer Top Terminal: Button-top design fits most 18650-compatible devices right out of the box.
Product Description
The Ultralast LION-1865-26 is a 3.7V, 2600mAh rechargeable lithium-ion 18650 cell built to meet or exceed original manufacturer specifications. Whether you're powering a high-performance flashlight like the Fenix TK35, a tactical light, or another 18650-format device, this battery delivers reliable, consistent power when you need it most.
The 18650 is one of the most popular rechargeable cell formats available. They balance a compact size with strong capacity. It's a trusted choice for flashlight enthusiasts, outdoor adventurers, and everyday users alike.
With a standard consumer top terminal and a slim cylindrical profile measuring just 2.6 x 0.8 inches, the LION-1865-26 drops right in where your original battery was. At only 1.8 oz, it adds virtually no extra weight to your gear.
This cell cross-references with a wide range of devices and part numbers, including:
- ICR18650 / LIR18650
- Fenix TK35
- WF-501B
- RC-U8
- Power Drive / Super Drive
- T4-B0, T4-M0, and Torpedo Chrome VVV
Keep one on hand as a spare or stock a few to make sure your gear is always ready to go.
Frequently Asked Questions
What devices is the Dantona LION-1865-26 compatible with?
A: This battery works with a wide range of 18650-format devices, including the Fenix TK35, WF-501B, RC-U8, Power Drive, Super Drive, T4-B0, T4-M0, Torpedo Chrome VVV, and any device that accepts an ICR18650 or LIR18650 cell.
Is this battery rechargeable?
A: Yes — the LION-1865-26 is a rechargeable lithium-ion cell. You'll need a compatible 18650 charger to recharge it after use.
What is the voltage and capacity of this battery?
A: This battery delivers 3.7 volts and 2600mAh of capacity, providing solid, dependable performance for flashlights and similar devices.
Does this battery have a button top or flat top?
A: The LION-1865-26 features a consumer top (button top) terminal, which is the standard configuration for most 18650-compatible devices.
Cross Reference & Compatibility
- Dantona 18650
- Lezyne LIR18650
- Lezyne Power DRIVE
- Lezyne Super DRIVE
- Miscellaneous Batteries 18650 LION
- UltraFire 18650
- UltraFire C9-MCU SSC P7 LED
- UltraFire ICR18650
- UltraFire WF-501B
This battery can be used in these models:
- Fenix TK35
- Inova T4-B0
- Inova T4-BO
- Inova T4-M0
- Inova T4-MO
- Romisen RC-U8
Customer Reviews
Great
This stored energy device works exactly as advertised and the device it powers works great with it, like peas and carrots!
Exact replacement for my photo battery pack. Glad to find it here at Battery Mart. They’re the best!
Fast delivery , good batteries !
I purchase this batteries from Battery Smart and I received it fast they also kept in touch with to see if I had any problems. I’m very Satisfied.
J.M.
The batteries were just what I was looking for. They work great!!
