Samsung 25R 4S7P Specifications
| Configuration | 4S7P |
| Cell | Samsung INR18650-25R |
| Cell size | 18650 |
| Cell chemistry | |
| Weight | 1.3 kg |
| Length | 14.23 cm |
| Width | 2.24 cm |
| Height | 27.13 cm |
| Charge voltage | 16.80 V |
| End voltage | 10.00 V |
| Capacity | 17500 mAh |
| Maximum continuous discharge current | 10 A |
| Charge current | 5 A |
| Watts | 144 W |
| Energy | 252 Wh |
| Volumetric energy density | 526.18 Wh/L |
| Gravimetric energy density | 200.00 Wh/kg |
| Charge time | 5 hours |
| Operating temperature | -20 ~ 75 °C |
Size Variations
Samsung 25R 4S7P 1-layer in parablock 7x1
| Length | 566.4 mm |
| Width | 22.3 mm |
| Height | 67.65 mm |
Samsung 25R 4S7P 2-layer in parablock 1x7
| Length | 41.3 mm |
| Width | 143.6 mm |
| Height | 135.6 mm |
Samsung 25R 4S7P 2-layer in parablock 7x1
| Length | 283.66 mm |
| Width | 22.36 mm |
| Height | 135.56 mm |
Samsung 25R 4S7P 4-layer in parablock 1x7
| Length | 21.06 mm |
| Width | 143.56 mm |
| Height | 271.26 mm |
Samsung 25R 4S7P 4-layer in parablock 7x1
| Length | 142.26 mm |
| Width | 22.36 mm |
| Height | 271.26 mm |
Calculations
Q. How to calculate the voltage for 4S7P Samsung 25R pack?
A. Take the nominal voltage of the Samsung 25R (3.6V) and multiply it by series connections (4) for a total of 14.40V.
Q. How to calculate the capacity and current for 4S7P Samsung 25R pack?
A. Take the nominal capacity of the Samsung 25R (2.50Ah) and max. continuous discharge current (20 A) and multiply them by the parallel connections (7) for a total of 17.50Ah and 140A.