This is an instruction manual for Bosch Rotak Ergo Flex 34 LI | 37 LI | 43 LI lawn mower
This manual provides safety instructions, technical data, and step‑by‑step operating procedures for the Bosch Rotak Ergo Flex 34 LI, 37 LI and 43 LI cordless lawn mowers. It includes guidance on battery handling, charging, and troubleshooting to ensure safe and efficient mowing.
The document also lists specifications such as blade width, cutting height range, battery voltage, capacity, charging times, and noise/vibration levels, plus detailed maintenance advice and a troubleshooting table for common issues.
| Blade width | 34 mm / 37 mm / 43 mm |
|---|---|
| Height of cut | 20 mm – 70 mm |
| Weight (EPTA) | 12.8 kg / 13.0 kg / 13.7 kg |
| Battery rated voltage | 36 V |
| Battery capacity (Li‑Ion) | 2.6 Ah |
| Battery charging period (2.6 Ah) | 60 min |
| Battery capacity (4.5 Ah) | 4.5 Ah |
| Battery charging period (4.5 Ah) | 95 min |
| Number of battery cells | 20 (2.6 Ah) / 30 (4.5 Ah) |
| Charging current (AL 3620) | 2.0 A |
| Charging current (AL 3640) | 4.0 A |
| Allowable charging temperature range | 0 °C – 45 °C |
The 2.6 Ah battery charges in about 60 minutes when using the supplied charger.
No. The manual states the mower must not be used in the rain and should not be left outdoors while it is raining.
When all three green LEDs stay continuously lit and a short tone sounds, the battery is fully charged.