How to make a new battery pack

The Yard Force Classic 500 comes originally with a 7S1P 18650 battery pack that has a capacity of 2000mAh, which is suitable for mowing from 1 hour to 1,5 hours on a single charge. The stock charger can deliver 1,5A which charges the battery in 1 hour.

There is enough space in the mower bellow the original battery pack to fit a 7S3P 18650 battery pack with still some room left. Bellow the original pack is a weight that needs to be removed and some plastic needs to be cut out or broken away with pliers (be careful to grind away any sharp edges to no damage the new battery). The original clamp to hold down the battery can be reused since the mounting points for the two screws for the clamp are not in the way.

BOM:

Batteries21 pieces*

Mounting brackets: 1x10 bracket 16PCS

3P Nickel welding strips: 3P 19.5x0.15mm 1M

Battery Pack Insulation Sticker tape: width65mm

Fiberglass Tape: 50mm wide

BMS: 7S 29.4V

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Avoid buying cells from China since the capacity is very likely false. There are no 18650 cells above