Thrunite 21700 5000mah 3.7v lithium ion (li-ion) battery
protected, button top
a long lasting battery for your favorite thrunite flashlights, the thrunite 21700 has the power you need. This rechargeable button top cell is designed with high capacity, performance, and safety features that keep your light running longer and stronger. With it's 21700 cell size this battery is perfect for either thrunite tt20 or thrunite t2 model flashlights, both popular edc models.
Proprietary battery

this is a customized 21700-sized battery, and should not be bought for flashlights and devices that need 21700 batteries with standard flat or button top terminals.
Learn more

notable features
21700 protected battery with button top terminal
high 5000mah capacity for long run times
unique structural design to be more impact-resistant
multiple built-in safety features to protect battery and device
battery size: 21700
battery capacity (mah): 5000
battery chemistry: li-ion
battery voltage: 3.7
battery terminal type: button top
battery shelf life: 3 years
packaging: boxed
brand: thrunite

Energizer Recharge: 2000 Mah Aa - 4 Pack

Expandable Battery pack for Arcadia Resi 300W Portable Power Station

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)

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)

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)

Duracell Rechargeable AAA 900mAh Batteries - 4 Pack

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 ARB-L18-3500 is a high capacity 18650 Li-ion rechargeable with a protection circuit in the anode to help prevent short circuits, over charge/discharge and overheating. The battery also includes pressure relief vents which expel waste gas in the rare case of an internal short circuit preventing an explosion. ARB-L18-3500 Rechargeable Battery 3500mAh high capacity Protection circuitry to prevent short circuits Pressure vents to prevent explosions 500 charge cycles Voltage: 3.6V Charging Current: Recommended 1A, maximum 2A Weight: 1.8 ounces (50g) Size: Length: 2.7″ (69mm) Diameter: 0.7″ (18.6mm)