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Molicel INR21700-M50A

High-capacity 21700 cell from Molicel. 5000mAh capacity with 7.5A continuous discharge. Molicel's energy-density champion — the highest capacity cell in their lineup. Ideal for range-focused builds where low-to-moderate discharge is acceptable. Competes with Samsung 50E/50S in the energy segment.

In brief: 21700 Li-ion battery cell. 5000mAh capacity. 10A continuous discharge.

Specs verified Jul 9, 2026

Where to Find

Prices tracked across 1 seller

Price History

Price History
Price changes tracked by the crawler

Current best price $7.99. Over the past 90 days: low $7.99, high $7.99, average $7.99 — about average.

  • Li-ion Wholesale
Apr 21Apr 29May 7May 15May 23May 31Jun 8Jun 16Jun 24Jul 2$5.00$6.00$7.00$8.00$9.00
All Records
19 price records in this period
DatePriceShippingTotalChangeCouponRatingSalesIn StockStatus
Li-ion Wholesale(19 records)
Jul 9, 202608:26 PM$7.99$7.99$0.00Noactive
Jun 30, 202611:56 AM$7.99$7.99$0.00Noactive
Jun 27, 202606:03 PM$7.99$7.99$0.00Noactive
Jun 25, 202611:52 AM$7.99$7.99$0.00Noactive
Jun 23, 202611:16 AM$7.99$7.99$0.00Noactive
Jun 21, 202612:28 PM$7.99$7.99$0.00Noactive
Jun 12, 202611:30 AM$7.99$7.99$0.00Noactive
Jun 2, 202610:14 AM$7.99$7.99$0.00Noactive
May 29, 202610:09 AM$7.99$7.99$0.00Noactive
May 27, 202610:07 AM$7.99$7.99$0.00Noactive
May 25, 202601:42 PM$7.99$7.99$0.00Noactive
May 23, 202610:05 AM$7.99$7.99$0.00Noactive
May 21, 202609:04 AM$7.99$7.99$0.00Noactive
May 19, 202609:05 AM$7.99$7.99$0.00Noactive
May 18, 202609:05 AM$7.99$7.99$0.00Noactive
May 16, 202609:04 AM$7.99$7.99$0.00Noactive
May 14, 202609:04 AM$7.99$7.99$0.00Noactive
May 12, 202609:04 AM$7.99$7.99$0.00Noactive
Apr 21, 202609:05 AM$7.99$7.99InitialNoactive

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Specifications

Cell Specs

Form Factor
21700
Chemistry
Li-ion
Capacity
5000mAh
Continuous Discharge
10.00A

Physical

Weight
67 g
Dimensions (L×W×H)
70mm × 21mm × 21mm

Resources

Official Batemo Page

Manufacturer Page<p>Get everything you need for the lithium-ion battery cell Molicel INR21700-M50A: Extensive measurement data in the total operation regime, a high-precision, physical battery model with global validity, and a teardown report that contains all details about materials and microstructures.</p> <table> <colgroup> <col width="50%"> <col width="50%"> </colgroup> <tbody> <tr> <td>Cell Origin</td> <td style="text-align:right">purchased on free market</td> </tr> <tr> <td>Cell Format</td> <td style="text-align:right">21700</td> </tr> <tr> <td>Dimen­sions</td> <td style="text-align:right">21.3 x 70.2&nbsp;mm</td> </tr> <tr> <td>Weight</td> <td style="text-align:right">66.7 g</td> </tr> <tr> <td>Capacity<br> <span class="collapseomatic noarrow" id="id699f77d676b60" tabindex="0" alt="definition" title="definition">defin­i­tion</span><span id="swap-id699f77d676b60" alt="'close'" class="colomat-swap" style="display:none;">close</span><div id="target-id699f77d676b60" class="collapseomatic_content collapsible_orange"> The nominal capacity origi­nates from the manufac­tur­er’s data sheet, if avail­able. When the data sheet is unavail­able, the nominal capacity is estimated. Batemo measured the C/10 capacity by discharging the cell at an ambient temper­a­ture of 25°C from 100% with a constant current of 0.50A (0.1C) until reaching the voltage of 2.5V. The thermal boundary condi­tion is free convection.<br> </div></td> <td style="text-align:right"> <span style="font-size: 10px">nominal</span>&nbsp;5.00 Ah<br> <span style="font-size: 10px">C/10</span>&nbsp;4.78 Ah</td> </tr> <tr> <td>Current<br> <span class="collapseomatic noarrow" id="id699f77d676bcd" tabindex="0" alt="definition" title="definition">defin­i­tion</span><span id="swap-id699f77d676bcd" alt="'close'" class="colomat-swap" style="display:none;">close</span><div id="target-id699f77d676bcd" class="collapseomatic_content collapsible_orange"> All quanti­ties are measure­ment results from the Batemo battery labora­tory.<br> The contin­uous current is the highest current that completely discharges the cell without overheating it. There­fore, the cell is discharged from 100% state of charge (SOC) at an ambient temper­a­ture of 25°C with a constant current until a residual state of charge of 10% and either the lower voltage limit of 2.5V or 90% of the maximum surface temper­a­ture (63°C) is reached.<br> The peak current is the current that the cell can supply for 5 minutes. The cell is there­fore discharged from 100% SOC at an ambient temper­a­ture of 25°C with a constant current until it reaches either the lower voltage limit of 2.5V or the maximum surface temper­a­ture of 70°C after 5 minutes. For cells that reach the maximum surface temper­a­ture, the measured current is taken directly as the peak current. For cells that do not reach the maximum surface temper­a­ture after 5 minutes because they reach the lower voltage limit first, the measured current is multi­plied by a correc­tion factor that estimates the current that would have heated the cell to the maximum surface temper­a­ture within 5 minutes.<br> The thermal boundary condi­tion is free convec­tion. These operating conditions may be outside the cell manufacturer’s specification.<br> </div></td> <td style="text-align:right"> <span style="font-size: 10px">contin­uous</span>&nbsp;9.90 A<br> <span style="font-size: 10px">peak</span>&nbsp;20.2 A</td> </tr> <tr> <td>Energy<br> <span class="collapseomatic noarrow" id="id699f77d676c16" tabindex="0" alt="definition" title="definition">defin­i­tion</span><span id="swap-id699f77d676c16" alt="'close'" class="colomat-swap" style="display:none;">close</span><div id="target-id699f77d676c16" class="collapseomatic_content collapsible_orange"> Batemo measured the C/10 energy by discharging the cell at an ambient temper­a­ture of 25°C from 100% with a constant current of 0.50A (0.1C) until reaching the voltage of 2.5V. The thermal boundary condi­tion is free convection.<br> </div></td> <td style="text-align:right"> <span style="font-size: 10px">C/10</span>&nbsp;17.4 Wh</td> </tr> <tr> <td>Power<br> <span class="collapseomatic noarrow" id="id699f77d676c53" tabindex="0" alt="definition" title="definition">defin­i­tion</span><span id="swap-id699f77d676c53" alt="'close'" class="colomat-swap" style="display:none;">close</span><div id="target-id699f77d676c53" class="collapseomatic_content collapsible_orange"> All quanti­ties are measure­ment results from the Batemo battery labora­tory.<br> The contin­uous power is the highest power that completely discharges the cell without overheating it. There­fore, the cell is discharged from 100% state of charge (SOC) at an ambient temper­a­ture of 25°C with a constant current until a residual state of charge of 10% and either the lower voltage limit of 2.5V or 90% of the maximum surface temper­a­ture ( 63°C) is reached.<br> The peak power is the power the cell can supply for 5 minutes. The cell is there­fore discharged from 100% SOC at an ambient temper­a­ture of 25°C with a constant current until it reaches either the lower voltage limit of 2.5V or the maximum surface temper­a­ture of 70°C after 5 minutes. For cells that reach the maximum temper­a­ture limit, the measured power is directly taken as peak power. For cells that do not reach the maximum surface temper­a­ture after 5 minutes because they reach the lower voltage limit first, the measured power is multi­plied by a correc­tion factor that estimates the power that would have heated the cell to the maximum surface temper­a­ture within 5 minutes.<br> The thermal boundary condi­tion is free convec­tion. These operating conditions may be outside the cell manufacturer’s specification.<br> </div></td> <td style="text-align:right"> <span style="font-size: 10px">contin­uous</span>&nbsp;33.5 W<br> <span style="font-size: 10px">peak</span>&nbsp;69.3 W</td> </tr> <tr> <td>Energy Density<br> <span class="collapseomatic noarrow" id="id699f77d676c8e" tabindex="0" alt="definition" title="definition">defin­i­tion</span><span id="swap-id699f77d676c8e" alt="'close'" class="colomat-swap" style="display:none;">close</span><div id="target-id699f77d676c8e" class="collapseomatic_content collapsible_orange"> The energy densi­ties result from the C/10 energy, the cell weight and the cell volume.<br> </div></td> <td style="text-align:right"> <span style="font-size: 10px">gravi­metric</span>&nbsp;261 Wh/kg<br> <span style="font-size: 10px">volumetric</span>&nbsp;696 Wh/l</td> </tr> <tr> <td>Power Density<br> <span class="collapseomatic noarrow" id="id699f77d676cca" tabindex="0" alt="definition" title="definition">defin­i­tion</span><span id="swap-id699f77d676cca" alt="'close'" class="colomat-swap" style="display:none;">close</span><div id="target-id699f77d676cca" class="collapseomatic_content collapsible_orange"> The power densi­ties result from the peak power, the cell weight and the cell volume.<br> </div></td> <td style="text-align:right"> <span style="font-size: 10px">gravi­metric</span>&nbsp;1.04 kW/kg<br> <span style="font-size: 10px">volumetric</span>&nbsp;2.77 kW/l</td> </tr> </tbody> </table>

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