Samsung INR21700-50E 5000 mAh 10A, genuine Samsung SDI cell

Samsung INR21700-50E — 5000 mAh, genuine Samsung SDI cell

The Samsung 50E is one of the most popular 21700 cells in the world — and for good reason. 5000 mAh capacity, proven NMC chemistry, and the Samsung SDI name behind it make it a staple in e-bike packs, power banks, and energy storage systems globally. If you're looking for a proven cell with real capacity — you won't guess it here.

Why Samsung 50E?

• 5000 mAh — confirmed capacity — not "up to 5000", not "approx. 5000". Samsung SDI produces with precision and full quality control. You buy what's on the label.
• Genuine Samsung SDI cells — Samsung SDI is one of the three largest Li-ion cell manufacturers in the world. The 50E is a mass-produced product from an authorized supply chain — no clones, no "rebrands".
• Proven in hundreds of thousands of packs — The 50E has been a reference standard in DIY projects and small-batch production for years. A vast knowledge base, ready-made configurations, known discharge characteristics.

Technical parameters

What is it suitable for?

• Electric bicycles (e-bike) — The 50E is one of the most commonly used formats in 10S, 13S, and 14S packs. Proven discharge characteristics and broad support in popular BMSs.
• Electric scooters and single-track vehicles — a good compromise between capacity and size.
• DIY high-capacity power banks — with a 4P configuration, that's already 20,000 mAh in four cells.
• UPS systems and small to medium power energy storage

Energy cell — optimized for capacity and range, not for peak current. If your project requires over 10–15 A continuous current per cell, please contact us before purchasing.

50E or 53G? A brief comparison

If you're wondering between these two models: the 53G offers 5300 mAh (+6% capacity), which can translate into a noticeable difference in range for large packs. The 50E is more popular — it's easier to find ready-made projects, configurations, and BMS schemes optimized for this particular cell. Both are Samsung SDI products of the same quality class.

You are buying the original

The 50E is one of the most counterfeited models on the market — its high popularity attracts cheap clones with exaggerated parameters. The cells we offer come from an authorized Samsung SDI supply chain. We check batches before shipping. We do not deal in fakes or reclaimed cells.

Have a question before ordering? Write to us — we'll help you choose the right pack configuration for your project.