ARB-L14-1600U is a high capacity 14500 Li-ion rechargeable battery with a built-in micro-USB charging port. It also includes a protection circuit in the anode to help prevent short circuits, over charge/discharge and overheating. This battery can quickly be charged without the need for a separate charger. This not only save you money from purchasing a charger, but also convenience of not having to carry around another device. This will work in all the models that utilize the standard AA battery. This battery is a great rechargeable alternative to alkaline AA battery. Micro-USB charging port 1600mAh high capacity Protection circuitry to prevent short circuits Pressure vents to prevent explosions 500 charge cycles Indicator light on battery is red while charging, blue when charged Voltage: 1.5V Charging Current: Only charge using a USB cable to the micro USB port on the battery. Do not charge by other device Charging Current USB Port: 300mA Weight: 0.67 ounces (19g) Size: Length: 1.97″ (50mm) Diameter: 0.57″ (14.5mm)

This high capacity 18650 Li-ion rechargeable battery is built for large current output of up to 14A an a capacity of 3000mAh for long runtimes.
It also includes a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating.
Specifications of the ARB-L18-3000P Rechargeable Battery
3000mAh high capacity
Large current output up to 14A
Protection circuitry to prevent short circuits
Pressure vents to prevent explosions
500 charge cycles
Voltage: 3.6V
Charging Current: Recommended 1.5A, maximum 3.9A
Maximum output current: 14A
Weight: 1.69 ounces (48g)
Size: Length: 2.72″ (69.1mm) Diameter: 0.73″ (18.7mm)

Large size filters available in red, preserves night vision Improves night vision visibility Assists in spotting game without fear of being detected Made from PC-2805 plastic created by Bayer Material Science AG

ARB-L21-4000P is a high-capacity 21700 Li-ion rechargeable battery built for longer runtimes at higher levels. These battery allows a high output flashlight like the LR35R to have its turbo setting of 10000 lumens to maintain it’s output by maintaining higher voltage for longer periods of a batteries charge. Additional features include a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. Pressure relief vents which expel waste gas in the rare case of an internal short circuit preventing an explosion.

Important Note: THIS BATTERY IS NOT COMPATIBLE WITH 18650 FLASHLIGHTS OR OLDER STYLE CHARGERS. COMPATIBLE CHARGERS ARE THE ARE-A2, ARE-A4, ARE-D1 OR ARE-D2.

Specifications:

• 21700 battery type
• Protection circuitry to prevent short circuits
• Pressure vents to prevent explosions
• 500 charge cycles
• Capacity: 4000mAh
• Voltage: 3.6V
• Charging Current: Recommended 1A, maximum 4A
• Maximum output current: 18A (less than 3 minutes)
• Maximum continuous output current: 10A
• Weight: 2.5 ounces (70g)
• Size: Length: 2.99″ (76mm) Diameter: 0.85″ (21.5mm)

The Fenix RC20 rechargeable flashlight simplifies how you keep your flashlight performing at full capacity. When stored with the included USB charging cradle, your flashlight will always be ready for when you need it. And with its 1000 lumens and over 950-foot beam distance, this light will meet any challenge. Other features include a dual tail switch for simplified mode selections, battery level indicator, and four brightness levels plus strobe. This flashlight is perfect for law enforcement, search, and rescue, or anyone needing trusted battery performance. Size: Length: 6.3” (161mm) Width: 1” (25.4mm) Head: 1.6” (40mm) Weight: 7.2 oz. (205g) including batteries Batteries: Built-in Li-ion battery Included: USB charging cradle, USB adaptor, holster, lanyard, spare O-ring Uses Cree XM-L2 (U2) LED with a lifespan of 50,000 hours Tailored 2600mAh 3.7V rechargeable Li-ion battery USB charging cradle Battery level indicator Dual tail switch with momentary-on function and instant strobe General Mode (four brightness levels) and Simplified Mode (two brightness levels) Digitally regulated output maintains constant brightness Over-heat protection to avoid the high temperature of the surface Intelligent memory circuit automatically enters the previously used brightness level when turned on again Low-voltage reminder indicates when battery replacement is needed Anti-roll, slip-resistant design of the light head Made of durable aircraft-grade aluminium Premium type ? hard-anodized anti-abrasive finish Toughened ultra-clear glass lens with anti-reflective coating

ARB-L18-3500U is a high capacity 18650 Li-ion USB rechargeable battery with a built-in micro-USB charging port. It also includes a protection circuit in the anode to help prevent short circuits, over charge/discharge and overheating. These USB rechargeable batteries can quickly be charged without the need for a separate charger. This not only save you money from purchasing a charger, but also convenience of not having to carry around another device. This will work in all the current models that utilize a li-ion 18650 battery, including best sellers like the PD35 V2.0, PD35TAC, TK20R, TK75, TK15UE, and more. A micro-USB charging cord is NOT included Micro-USB charging port 3500mAh high capacity USB rechargeable batteries Protection circuitry to prevent short circuits Pressure vents to prevent explosions 500 charge cycles Voltage: 3.6V Charging Current: Recommended 1A, maximum 2A Charging Current USB Port: 0.8A Weight: 1.8 ounces (50.2g) Size: Length: 2.8″ (70mm) Diameter: 0.7″ (18.6mm)

The Fenix TK26R is a tactical flashlight packed full of features. Not only do you have five modes of white light, but you also have an independent red and green light. Powered by one included 18650 battery, this light can blast a maximum 1500 lumens 1148ft (350m).
The Fenix TK26R is a flashlight packed full of features. Not only do you have five modes of white light, but you also have an independent red and green light. Powered by one included 18650 battery, this light can blast a maximum 1500 lumens 1148ft (350m). Features include three independent switches that control all the lights functions, plus strobe, a battery level indicator and strike bezel. Built tough from premium aluminum, this tactical flashlight is also waterproof and dustproof. 
Length: 5.9” (150mm)
Head: 1.6” (40mm)
Body: 1.0” (25.4mm)
5.5 oz. (157g) excluding battery
One (included) 18650 rechargeable Li-ion battery or two CR123A batteries