Reliance INR21700-RS50 high-power lithium-ion cell
Reliance high-power lithium-ion cell

INR21700-RS50

Power for demanding load profiles.

A 5,000 mAh 21700-format cell with a 70 A maximum continuous discharge rating, suited to battery systems where strong current capability and dependable energy delivery are both essential.

5,000Capacity · mAh
70Max. discharge · A
268Energy density · Wh/kg
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Why choose this cell

High output for power-intensive pack designs.

Choose this cell when the battery pack must support demanding current profiles while maintaining 5,000 mAh of capacity. Its 70 A maximum continuous discharge rating makes it a strong candidate for performance-led systems, subject to full electrical and thermal validation. Its 268 Wh/kg gravimetric energy density provides a clear basis for comparing it with other cells in the portfolio.

High power capability

Supports demanding current profiles in performance-focused packs.

Useful capacity

Retains meaningful stored energy alongside its high discharge rating.

Application flexibility

Relevant to aerial, mobility and specialist industrial platforms.

Technical overview

Core specifications

ModelINR21700-RS50
Capacity5000mAh
Maximum continuous discharge70A
Maximum continuous charge8A
Internal resistance≤ 4 mΩ
Nominal voltage3.6V
Nominal energy18Wh
Weight67g
Gravimetric energy density268Wh/kg

Final cell selection must be validated against the complete datasheet, load profile, thermal design, charging strategy, pack architecture, operating environment and applicable certification requirements.

Discuss the RS50 with Baynor.

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