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| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Brand | Molicel | Model | INR-21700-P50B |
| Cell type | Rechargeable cylindrical lithium-ion | Can | Steel |
| Typical capacity | 5000mAh | Minimum capacity | 4850mAh |
| Typical energy | 18.0Wh | Minimum energy | 17.5Wh |
| Nominal voltage | 3.6V | Charge voltage | 4.2V |
| Discharge voltage | 2.5V | Standard charge current | 5.0A, 70°C cutoff |
| Maximum charge current | 25A, 70°C cutoff | Standard charge time | 1.5 hours |
| Continuous discharge current | 60A, 80°C cutoff | Ambient charge temperature | −20 to 60°C |
| Ambient discharge temperature | −40 to 60°C | Typical AC impedance | 6.5mΩ at 30% SOC |
| Typical DC impedance | 12.8mΩ at 50% SOC | Max. diameter | 21.55mm |
| Max. height | 70.15mm | Max. weight | 71g |
| Gravimetric energy density | 260Wh/kg | Volumetric energy density | 714Wh/L |
The Molicel INR-21700-P50B is a rechargeable 21700 lithium-ion cell combining 5000mAh typical capacity with high-current operation. Its product data sheet specifies 60A continuous discharge with an 80°C cutoff and a 25A maximum charge current with a 70°C cutoff. The cell has a 3.6V nominal voltage, steel can and compact cylindrical format. MisenBattery supplies Molicel-branded cells and supports custom pack integration with application-specific protection, electrical connections and thermal management.
Molicel lists 5000mAh and 18.0Wh as typical capacity and energy, with minimum figures of 4850mAh and 17.5Wh. Its nominal cell voltage is 3.6V, with 4.2V charge voltage and 2.5V discharge voltage. Keeping typical and minimum values distinct helps pack designers estimate cell count and usable energy while allowing for the stated capacity grade and actual load profile.
The P50B data sheet labels 60A as continuous discharge with an 80°C cutoff. Pack protection and temperature sensing must enforce that cutoff; the current figure should not be presented as unrestricted operation. The discharge-rate chart shows less delivered capacity at the highest current, so engineers should measure heat rise, voltage sag and runtime in the proposed pack configuration before selecting the final operating current.
The standard charge current is 5.0A, with a stated standard charge time of 1.5 hours. The maximum charge current is 25A; Molicel places both current values under a 70°C cutoff heading. Charge voltage is 4.2V. Charger and BMS settings should account for cell temperature, pack heat removal and application duty cycle rather than treating the maximum current as a universal charge recommendation.
The cell has a steel cylindrical can with a maximum diameter of 21.55mm, maximum height of 70.15mm and maximum weight of 71g. The sheet also lists typical gravimetric and volumetric energy densities of 260Wh/kg and 714Wh/L. These dimensions and mass limits help size holders, insulation, busbars and cooling paths when the cell is assembled into a protected battery module.
Molicel lists ambient temperature ranges of −20 to 60°C for charging and −40 to 60°C for discharging. Ambient limits are distinct from the 70°C charge-current and 80°C discharge-current cutoffs shown on the sheet. A pack should monitor the cell itself, use a temperature-aware BMS and validate current capability across the intended temperature range, particularly at cold or high-load operating points.
The product sheet gives typical AC impedance of 6.5mΩ at 30% state of charge and typical DC impedance of 12.8mΩ at 50% state of charge. Its cycle chart compares several charge and discharge conditions over 500 cycles, but the sheet supplies no universal remaining-capacity guarantee. Compare only measurements taken under matching conditions, and request application-specific guidance when setting production pack limits.
Custom battery pack applications: MisenBattery supplies Molicel INR-21700-P50B bare cells and supports custom packs for power tools, robotics, portable power and other high-current systems after application testing. Specify a compatible BMS, fusing, cell-level temperature sensing, suitable welded interconnects, insulation and heat removal. The manufacturer states that this cell is not designed or produced for vape or e-cigarette devices. Request applicable CE, UN38.3, RoHS or UL documentation for the exact product and shipment scope; none is claimed by this listing.
