AL1 3820 Li Kit

Battery lawn mower

This powerful but lightweight hand-propelled cordless lawn mower comes with two 20V Li-Ion batteries and has a 38cm width-of-cut.
  • Collects clippings in a 40-litre grassbox
  • Supplied with two cutting-edge 20V (4Ah) lithium-ion batteries
  • Compact 38cm width-of-cut
  • Hand-propelled – enjoy excellent manoeuvrability
  • Charger also included
  • Battery kit included
Tax Included

Product details and specs

Maintaining a less substantial lawn has never been easier than with the cutting-edge Alpina AL1 3820 Li Kit cordless lawn mower!
Instead of a noisy, polluting and hard-to-start petrol engine, it utilises the latest lithium-ion battery technology. This, in combination with a super-efficient and long-lasting brushless motor, means you’ll enjoy extended battery run-times and performance levels comparable to similarly rated petrol-powered models.
Blending simple hand-propulsion with a relatively compact 38cm working-width and an impressively lightweight design, the Alpina AL1 3820 Li Kit offers excellent manoeuvrability and will therefore prove a great choice for smaller areas where there are obstacles to work around and between.
A carry-handle positioned on top of the mower makes it easy to pick-up and move; while single-lever cutting-height selection makes the pre-mowing set-up really quick and easy.
Further high-specification features include a polypropylene deck that keeps machine-weight to a minimum, whilst conferring robust impact-resistance; and a roomy 40-litre grassbox, which has been design-optimised to ensure it gets packed to capacity without any clogging.
This model comes with two 20V (4Ah) batteries, both of which can be used with all Alpina 20V garden machines (charger also included).


Employs the latest Li-Ion battery technology
No maintenance, no cable, no fumes and no fuss!
Built-in carry handle
Lift the mower up steps or into the car boot with supreme ease.
Compact dimensions and lightweight design
Ideal for smaller areas where manoeuvrability is key.
Polypropylene deck
Minimises machine weight while maximising impact resistance.
Designed to fill properly
Grass collector designed to fill without clogging and subsequent stalling.

What's in the box

AL1 3820 Li Kit
AL1 3820 Li Kit
Battery lawn mower
  • lensGrass bag
  • lens 2 Batteries
  • lens Battery charger

Technical specs

General info
Battery capacity
2 x 4 Ah
0.55 kW
Power source
20 Volt
Battery kit
Battery Voltage
20 V
Lithium battery nominal energy
144 Wh
Number of batteries
Suggested working area
350 ㎡
Cutting system
Cutting width
38 cm
Deck material
Cutting height adjustment
Cutting height positions
6 positions
Cutting height range
25 - 75 mm
Drive system
Collector capacity
40 l
Handlebar type
Flat with single hand switch
140/170 mm grooved wheels
Front handle
Adjustable handlebar
Foldable handlebar
Collector type
Tools kit
Battery charger
Dual standard
Battery charger plug type
Europlug (Type C)
Vibration and noise data
Guaranteed sound power level (LwA) - dB(A)
Measured sound power level dB(A)
Measured sound pressure level at operator ear dB(A)
Vibration level hand (m/s2)
Overall dimensions
Pack weight
13.62 kg
Product length
1439 mm
Product width
435 mm
Product height
914 mm
Product weight
12.237 kg

Related Accessories

B 22
20 Volt
Battery capacity
2 Ah
Lithium battery nominal energy
36 Wh
B 24
20 Volt
Battery capacity
4 Ah
Lithium battery nominal energy
72 Wh


What factors does battery life of this battery lawn mower depend on?
Battery autonomy for cordless lawn mowers may vary based on factors such as the density or height of the grass to be cut, humidity, the cutting width of the machine or the selected cutting height.
How is the battery for this cordless lawn mower recharged?
The battery for this cordless lawn mower can be partially recharged, but must be recharged before first use and before a long period of inactivity (over 30 days). At temperatures below 0 ° and above 45 ° C the system will not allow recharging.
How can I clean the collection bag of my battery lawn mower?
First of all, empty the collection bag of your cordless lawn mower, then shake it to clean it of grass and soil residues. At this point you can wash it with water, rinse it and store it in order to facilitate rapid drying.
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