# Dong Cheng 20V Brushless 12in (30cm) Chainsaw Kit, 2 x 4.0Ah

Source: https://www.ranked10.co.uk/garden/best-cordless-chainsaws/dong-cheng-20v-brushless-chainsaw
Ranked #7 in "Best Cordless Chainsaw 2026: 10 Ranked, and Why 40V Isn't 40V": https://www.ranked10.co.uk/garden/best-cordless-chainsaws

- Price: £104.49 (checked on Amazon UK on 2026-09-15)
- Amazon rating: 4.1 from 98 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B0GQXWB85Z?tag=ranked10-21

The Dong Cheng 20V Brushless 12 inch (30cm) Chainsaw sits at number 7 in this guide and is the cheapest two-battery kit in it: £104.49 for the saw and two 4.0Ah packs, rated 4.1 out of 5 from 98 ratings. The listing calls it a 20V machine, and its own runtime bullet describes it as running on "dual 4000mAh lithium-ion battery" — two packs, which is why the title promises a 2 × 4.0Ah kit.

The number that does not close on this listing is the weight. The first bullet says the saw weighs "just 5.5 lbs (with battery)"; the Item Weight field in the spec table says 4.79 kg, which is about 10.6 lbs. Those are two figures from the same page, and they are roughly 2.3 kg apart. The rating breakdown is out too: the individual star bars (13, 3, 7, 15, 62) add up to 100, while the listing reports 98 ratings. And "Included Components" lists "Battery pack", singular, under a title that promises two 4.0Ah packs. Everything on this page is taken from the Amazon listing — none of it comes from testing of our own.

## Specification

| Field | Value |
|---|---|
| Price | £104.49 |
| Rating | 4.1 out of 5, from 98 ratings |
| Bar and chain | 12 inch (30cm) |
| Battery | Dual 4000mAh, sold as a 2 x 4.0Ah kit |
| Weight (listing copy) | 5.5 lbs (with battery) |
| Weight (spec table) | 4.79 kg |
| Included components (as listed) | Battery pack |
| Best Sellers Rank | 161 in Chain Saws (39,280 in Garden) |

## Questions people ask

**What comes with the Dong Cheng DCCS20121?**

The listing title says "2 * 4.0Ah Kit" and the runtime bullet says the saw runs on "dual 4000mAh lithium-ion battery". The spec table is less generous: its Included Components field reads "Battery pack", singular.

**How much does this chainsaw weigh?**

The first bullet says "Only Weighing just 5.5 lbs (with battery)". The Item Weight field in the spec table says 4.79 kg, which is around 10.6 lbs. Both figures appear on the same listing and they do not match.

**How many cuts will one charge give?**

The listing claims "up to 80 cuts per charge when cutting 4 × 4 inch wood" from the dual 4000mAh batteries, with chain speed quoted at up to 12 m/s.

**Do I need tools to adjust the chain?**

No. Dong Cheng lists tool-free chain tensioning with a side-mounted dial, plus an automatic chain oiler that lubricates the chain while the DCCS20121 is running.

**What safety features does the DCCS20121 have?**

An instant-stop chain brake that stops the chain in less than 0.12 seconds, and a lock-off safety switch to help prevent accidental start-up.

**How is the Dong Cheng 20V rated on Amazon?**

4.1 out of 5 from 98 ratings. The star breakdown shows 62 five-star and 13 one-star; those bars add up to 100 reviews, not 98.