21700 6000mAh Li-ion Battery Protected Button Top 3.7V Rechargeable Cell

• Nominal Capacity: 6000mAh [6Ah]
• Nominal Voltage: 3.6V / 3.7V
• Max Continuous Discharging Current: 13A [13000mA]
• Positive Terminal: Button Top [Welded]
• Advanced Electronic Safety Protection: Integrated ICs by Seiko / Ablic, Made in Japan
• Dimensions: Height: 74.8 ± 0.5 mm (2.945 ± 0.020 in.) Diameter: 22.5 ± 0.5 mm (0.886 ± 0.020 in.)
• Weight: Max 74.8g [2.64 oz]
• Rechargeable: Yes - up to 500 recharge cycles
• Model/Part No.: ORB-6000P-21

• Overcharge protection (Activated @ 4.35V)
• Over-discharge protection (Activated @ below 2.4V)
• Over-current protection (Activated @ or above 15A)
• Short circuit safety protection - Prevents hazardous short circuits

• Recommended Charging Current: 1A-2A
• Max Charging Current: 3A
• Charging Algorithm: CC/CV [Constant Current-Constant Voltage]
• Do not exceed 4.25V during charging.
• Use a charger specifically made for Li-ion batteries.

Works With:

• High-performance LED flashlights, lanterns and devices that use protected button-top 21700 batteries (74.8mm x 22.5mm ±0.5mm).
• Fenix Flashlight [devices]: compatible with the HT18R, HT32, LD45R, LR36R, PD36R V2.0, PD40R V3.0, PD45R ACE, TK22R, TK30R, CL27R
• Nitecore Flashlight [devices]: MH25 Pro, MH12 Pro

Not Compatible With:

• Nitecore E4K, i4000r, P10i, P20i, P20iX, or any i series flashlight (requires proprietary Nitecore 21700 battery)
• Olight models (e.g., Seeker 2 Pro, Seeker 3 Pro, M2R Pro, Warrior X Pro, Odin) - requires proprietary Olight 217C50 battery
• Fenix: If your flashlight is not on Fenix Flashlights compatible with list [see above] then we highly recommend this battery: 21700 Orbtronic Protected 
• Wurkkos H1
• Convoy Z1
• FireFlies E07

If you've compared prices across brands, you might wonder: How can Orbtronic offer a 6000mAh protected 21700 battery for significantly less - when the specs look identical to those sold for $27 to $29?

Same Performance. Smarter Price.
Orbtronic delivers the same high-grade 6000mAh protected 21700 cells - with premium safety ICs and reliable build - at a more honest price than flashlight-focused brands. We invest in manufacturing, not million-dollar advertising. Our reputation is built on word of mouth and technical excellence. You're not paying for a logo - you're paying for performance. Same cell. Same protection. No compromise.

• Li-ion Charger for 21700 Protected Batteries 2x slots
• 4-Bay Li-ion Battery Charger for 21700 Protected
• 8-Channel Li-ion Charger for 21700 Protected Batteries

• Orbtronic Protected 21700 6000mAh Rechargeable Battery
• Free Battery 21700 Case included with purchase
• Protective Li-ion Packaging for safe shipping / handling
• Shipping: Fast shipping from Florida, USA - we usually ship the same-business-day (cut-off 3 PM EST)
• Price is for one battery

IMPORTANT SAFETY NOTICE: These are high-capacity, high-discharge lithium-ion batteries. To avoid potential safety risks, it's absolutely essential to use them correctly. Before use, please thoroughly review the provided safety guidelines and specifications for proper handling, charging procedures, and compatible devices. Mishandling these batteries can lead to significant hazards.

• AVOID SHORT CIRCUITS. Short circuits can cause fires, serious injuries, or damage to your device.
• Fully charge the battery to 4.2V before using it for the first time.
• Use only high-quality dedicated Li-ion chargers.
• Do not charge unattended or expose batteries to extreme temperatures.
• Store unused batteries in the provided plastic case.
• Never use with e-cigarettes, vaporizers, or similar devices.
• Immediately discontinue use if the battery is damaged or behaves abnormally.
• If there's resistance when inserting the battery, stop immediately and investigate the cause. Never use force.
• Keep out of reach of children and pets.
• Inspect your battery for physical damage, torn heat-shrink, or compromised terminal insulation before every use.

Battery Life Expectancy: Usually lasts between 4 and 5 years, or around 500 charge and discharge cycles. This lifespan can vary based on usage, storage conditions, and environmental temperatures.