Description
Maximize runtime with the Samsung INR21700 50G, a high-capacity 5000mAh cell engineered for endurance. This 10-pack delivers a stable 9.8A continuous discharge, making it an ideal power source for solar energy storage, high-output LED flashlights, portable power banks, and medical devices. The flat top design fits all standard 21700 spring-contact equipment and simplifies spot-welding for custom battery packs. With excellent cycle life and Samsung's industry-leading quality, the 50G keeps your essential devices running longer between charges — perfect for off-grid setups, emergency preparedness, and everyday reliability.
Key Features
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5000mAh High Capacity – Among the highest capacities available in the 21700 form factor, providing extended runtime for energy-intensive applications.
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9.8A Continuous Discharge – Supplies steady, reliable power for medium-drain devices without voltage sag. Handles fast-charge power banks and bright flashlight modes with ease.
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14.7A Pulse Capability – Short bursts of higher current available for momentary demands, such as camera recording or motor start-up (monitor temperature).
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Flat Top Design – Universally compatible with 21700 spring-contact chargers, battery holders, and flashlights. The flat positive terminal is ideal for spot-welding nickel strips.
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Long Cycle Life – Retains ≥80% capacity after 500 charge/discharge cycles, reducing total cost of ownership.
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10-Pack Bulk Value – Perfect for building large solar battery banks, refreshing multiple devices, or assembling high-capacity power banks.
Parameters
Applications
Recommended For
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Solar Energy Storage & Street Lights: Low-current, long-duration operation. A single cell can power a bright LED fixture through the night.
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High-Output 21700 Flashlights: Medium to high modes (1–6A) benefit from the 5000mAh capacity for exceptionally long illumination.
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Portable Power Banks: Build a compact 10,000–20,000mAh fast-charging power bank with just 2–4 cells.
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Medical Devices: Infusion pumps, patient monitors, and portable diagnostic equipment requiring uninterrupted, reliable power.
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Wireless Security Cameras & Smart Doorbells: Ultra-low standby consumption with sufficient peak current for motion-activated recording.
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Camping Lanterns & Portable Fans: Extended operation for multi-day outdoor adventures or emergency situations.
Not Recommended For
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Cordless Power Tools: Drills, impact drivers, and saws demand 15–40A. Using the 50G will cause overheating and damage.
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E-Bikes & Electric Scooters: Acceleration and hill-climbing currents typically exceed 10A; choose a high-drain cell like the Samsung 40T or 50S.
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High-Power Vaping: Sub-ohm mods require 20A+; this cell is designed for capacity, not extreme current.
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RC Models & High-Burst Devices: Instantaneous current requirements far exceed the 50G's pulse rating.
FAQ
Q: Can I use this battery for my e-bike or power tool?
A: No. The Samsung 50G is a high-capacity, low-to-medium drain cell. E-bikes and power tools require sustained currents of 15–40A, which will quickly overheat and damage this battery. For those applications, use high-drain cells like the Samsung 40T (35A) or 50S (25A).
Q: What is the difference between continuous and pulse discharge?
A: Continuous discharge (9.8A) is the maximum current the cell can safely deliver for an extended period without overheating. Pulse discharge (14.7A) is a short burst (a few seconds) that the cell can handle temporarily. Always design your system to stay within the continuous rating for safety and longevity.
Q: Is this battery protected?
A: No, the Samsung 50G is an unprotected flat top cell. Most single-cell devices have built-in protection, but for multi-cell packs, you must install an external BMS rated for at least 10A.
Q: How does the 50G compare to the Samsung 50E or 50S?
A: The 50G offers 5000mAh with 9.8A continuous discharge, sitting between the 50E (5000mAh/9.8A, very similar) and the 50S (5000mAh/25A). The 50G is optimized for applications prioritizing capacity over high current. If you need more current, choose the 50S.
Q: How should I store these cells long-term?
A: Store at 3.6–3.7V (approximately 40–50% charge) in a cool, dry place using non-conductive battery cases. Avoid storing fully charged or fully discharged for extended periods.
