Cordless or rechargeable battery lawnmowers have taken a big step forward with the emergence of more powerful 36V Lithium-Ion batteries with faster recharge cycles. These rechargeable Lithium-ion models are ideal for small to medium sized lawns as they are very quiet in operation and easy to use. The Bosch Rotak Li range offer 34cm, 37cm and 43cm cutting widths and both Brill and Wolf Garten have Lithium-ion models available.