The Bosch Rotak 37 LI Ergoflex – A powerful electric rotary lawnmower with the convenience of cordless technology
The Rotak 37 LI Ergoflex is packed full of incredible features to ensure you get a pristine lawn every time. The mower comes with a powerful 36 volt/2.6Ah Lithium-Ion battery. Featuring grass combs, this lawnmower is able to easily cut up to or over the edge of your lawn giving a more thorough cut. It has a full 37 cm cutting width, ideal for medium sized lawns and offers a range of adjustable cutting heights, from 20 to 70 mm.
Cordless Freedom–Powered by Bosch Lithium-ion Technology
Being cordless removes the hassle of untangling the cable, damaging flower beds and the risk of cutting the cable whilst mowing. The Bosch Rotak 37 LI Ergoflex can be used anywhere away from a power source and unlike petrol mowers, are free of smell and excessive noise.
The performance of the lithium-ion battery will vary according to the conditions of the grass. If it’s too wet, too long or covers a very large area, the running time of the battery will be affected, but in ideal conditions where the grass is short, fine and dry, running times could be up to 30 minutes. The Rotak 37 LI Ergoflex’s 36V/2.6Ah Lithium-ion battery should give 500-700 cycles of life, which should be anywhere between 5 to 10 years of regular usage. With a full charge taking up to 60 minutes and an 80% charge taking 30 minutes, you’re never to far from a pristine lawn.
Efficient Energy Management (EEM)
EEM increases the run time of the Rotak 37 LI Ergoflex by 10%-20%. The EEM has two functions. Firstly, intelligent cutting electronics maintain the blade rotation at an optimum constant speed, this smoothes out the ‘load’ requirement and saves energy. Secondly, the kinetic energy recovery system harnesses the energy generated by the blade run-down and feeds it back into the mower battery as soon as the motor has been switched off.
Grass combs–mow right up to the edge
With inset front wheels and grass combs, the Rotak 37 LI Ergoflex can cut grass growing close to or over the edge of the lawn. This ensures that no strips of uncut grass are left behind even when cutting around flower beds, walls or paths.
Ergoflex System–for practical, comfortable gardening
The sleek Bosch Ergoflex design is based around the comfort and simplicity of computer console handsets, ensuring support and ease of movement. The mower can be operated left, right, one or two handed, horizontally or vertically, giving you 8 different grip positions to control the mower. With an adjustable working height and multi-position handle, optimal power transfer is achieved. Adjusting the mower to your body you can improve posture and reduce muscle strain. Bosch Ergoflex Lawnmowers are the first ever garden products to achieve Ergonomic Certification.
Height of cut adjustment
Decide from 10 different height of cut positions ranging between 20 – 70 mm. With the height being adjusted with a single handle, you can easily set the mower to the height you require.
Lightweight and easy to carry and store
Lightweight at only 13kg, and with its integrated carry handle, the Rotak 37 LI Ergoflex is easy to carry and store.
Large grassbox–less emptying
With a large 40 Litre grassbox, you won’t have to spend as much time emptying grass cuttings – so more time can be spent gardening.
About Bosch lawn and garden products
Bosch develops and manufactures a range of innovative powered garden products, sold around the world. A trusted household name, you know Bosch products, and their accessories, are of the utmost quality. All products are designed with the user in mind to make gardening tasks easier.
Compare the range
Rotak 32 LI Ergoflex
Rotak 37 LI Ergoflex
Rotak 43 LI Ergoflex
Cordless (Battery Powered)
|Recommended Lawn Size||From 150 m2 – 300 m2 (Up to 1 tennis court)||From 150 m2 – 300 m2 (Up to 1 tennis court)||From 300 m2 – 600 m2 (Up to 2 tennis courts)||From 1000 m2 (Over 3 tennis courts)|
|Width of Cut (cm)||32||37||43||26|
|Power||36 V Lithium-Ion battery||36 V Lithium-Ion battery||36 V Lithium-Ion battery||Lithium Ion (charging station)|
|Number of Batteries||1||1||2||N/A|
|Battery Charge Time||90 mins (80% power in 45 mins)||60 mins (80% power in 45 mins)||60 mins (80% power in 45 mins)||50 mins|
|Height of Cut (mm)||30-60||20-70||20-70||20-60|
|Height of Cut Positions||3||10||10||10|
|Cable Length (m)||N/A||N/A||N/A||N/A|
|Size of Grassbox (L)||31||40||50||No grassbox required|
1 x lawnmower
1 x grassbox
1 x battery
1 x charger
1 x instruction manual
37cm/15in Cutting Width
36 volt high powered Lithium-ion Battery, full recharge in 140 mins
6 position adjustable height of cut from 20-70mm
Ergoflex folding handle with integral carrying handle
40 litre grassbag