BS3850iS
| Specification | BS3850iS |
| Engine Type | Air-cooled, Single sylinder，4-Stroke（OHV） |
| Bore ×Stroke | 65×45mm |
| Displacement | 151ml |
| Compression Ratio | 8.5:1 |
| Rated frequency | 50Hz |
| Rated voltage | 230V |
| Rated power | 3.2 kW |
| Max.power | 3.5 kW |
| DC output | 12V/8.3A |
| Fuel tank capacity | 5.5L |
| Continuum running time | 2.6h |
| Rotating speed | idle switch（on / off）：3200/4200-4400prm |
| Noise (25% load within 7 meters) | 68dB |
| N.W/G.W | 23.5/25kg |
| Dimensions(L×W×H) | 575×370×510mm |
| Quantity(20GP/40HQ) | 220/520 |
