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Samsung INR18650-30Q

SamsungBattery Cell

The Samsung INR18650-30Q (commonly called the "30Q") is an NMC lithium-ion 18650 cell rated at 3000 mAh with a 15A continuous discharge rating — the most widely used 18650 in DIY e-bike battery packs. It offers an excellent balance of energy capacity and discharge capability for 250W–1000W builds, where a 5P pack delivers 75A continuous.

In brief: 18650 Li-ion battery cell. 3000mAh capacity. 15A continuous discharge. From $7.

Specs verified Oct 18, 2026

Price History

Price History
Price changes tracked by the crawler

Current best price $8.99. Over the past 90 days: low $5.99, high $8.99, average $7.29 — up 23% vs average.

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Jul 21Jul 30Aug 8Aug 17Aug 26Sep 4Sep 13Sep 22Oct 1Oct 10$5.95$6.80$7.65$8.50$9.35

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Specifications

Cell Specs

Form Factor
18650
Chemistry
Li-ion
Capacity
3000mAh
Continuous Discharge
15.00A
Peak Discharge
25.00A

Physical

Weight
47 g
Dimensions (L×W×H)
65mm × 18mm × 18mm

Resources

Official Batemo Page

Manufacturer Page<p>Get everything you need for the lithium-ion battery cell Samsung INR18650-30Q: 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">18650</td> </tr> <tr> <td>Dimen­sions</td> <td style="text-align:right">18.2 x 64.8&nbsp;mm</td> </tr> <tr> <td>Weight</td> <td style="text-align:right">45.9 g</td> </tr> <tr> <td>Capacity<br> <span class="collapseomatic noarrow" id="id699f6ac4e3bcd" tabindex="0" alt="definition" title="definition">defin­i­tion</span><span id="swap-id699f6ac4e3bcd" alt="'close'" class="colomat-swap" style="display:none;">close</span><div id="target-id699f6ac4e3bcd" 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 0.30A (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;3.00 Ah<br> <span style="font-size: 10px">C/10</span>&nbsp;2.98 Ah</td> </tr> <tr> <td>Current<br> <span class="collapseomatic noarrow" id="id699f6ac4e3c4e" tabindex="0" alt="definition" title="definition">defin­i­tion</span><span id="swap-id699f6ac4e3c4e" alt="'close'" class="colomat-swap" style="display:none;">close</span><div id="target-id699f6ac4e3c4e" 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 (72°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 80°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;13.6 A<br> <span style="font-size: 10px">peak</span>&nbsp;22.6 A</td> </tr> <tr> <td>Energy<br> <span class="collapseomatic noarrow" id="id699f6ac4e3ca3" tabindex="0" alt="definition" title="definition">defin­i­tion</span><span id="swap-id699f6ac4e3ca3" alt="'close'" class="colomat-swap" style="display:none;">close</span><div id="target-id699f6ac4e3ca3" 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 0.30A (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;10.9 Wh</td> </tr> <tr> <td>Power<br> <span class="collapseomatic noarrow" id="id699f6ac4e3cee" tabindex="0" alt="definition" title="definition">defin­i­tion</span><span id="swap-id699f6ac4e3cee" alt="'close'" class="colomat-swap" style="display:none;">close</span><div id="target-id699f6ac4e3cee" 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 ( 72°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 80°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;46.1 W<br> <span style="font-size: 10px">peak</span>&nbsp;75.7 W</td> </tr> <tr> <td>Energy Density<br> <span class="collapseomatic noarrow" id="id699f6ac4e3d32" tabindex="0" alt="definition" title="definition">defin­i­tion</span><span id="swap-id699f6ac4e3d32" alt="'close'" class="colomat-swap" style="display:none;">close</span><div id="target-id699f6ac4e3d32" 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;237 Wh/kg<br> <span style="font-size: 10px">volumetric</span>&nbsp;645 Wh/l</td> </tr> <tr> <td>Power Density<br> <span class="collapseomatic noarrow" id="id699f6ac4e3d76" tabindex="0" alt="definition" title="definition">defin­i­tion</span><span id="swap-id699f6ac4e3d76" alt="'close'" class="colomat-swap" style="display:none;">close</span><div id="target-id699f6ac4e3d76" 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;1.65 kW/kg<br> <span style="font-size: 10px">volumetric</span>&nbsp;4.50 kW/l</td> </tr> </tbody> </table>

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