What Battery Fits DeWalt DCST920 String Trimmer?
Quick answer
Our data matches the DeWalt DCST920 String Trimmer with DCB203, part DCB203 (20V, 2000mAh, Li-ion); DCB205, part DCB205 (20V, 5000mAh, Li-ion); DCB206, part DCB206 (20V, 6000mAh, Li-ion), plus 4 more options listed below.
Before buying, confirm the battery part number, voltage, connector, and device model shown on your original battery or device label. Live eBay listings are shown below and may change.
Compatible Replacement Batteries
Listings and prices are pulled from eBay and may change. Always verify compatibility before purchase. Last checked Jul 18, 2026.
![[NEW] (DCB204-2) DEWALT 20V MAX* 4Ah Battery (2 Pack)](https://i.ebayimg.com/images/g/5f0AAeSwOh5pz-qh/s-l225.jpg)
This page contains affiliate links. WhatBatteryFits.com may earn a commission on qualifying purchases at no extra cost to you.
Other DeWalt Devices Using This Battery
Frequently Asked Questions
What battery fits the DeWalt DCST920 String Trimmer?
Based on our compatibility data, the DeWalt DCST920 String Trimmer is associated with DCB203 (DCB203), exact match; DCB205 (DCB205), exact match; DCB206 (DCB206), exact match; DCB208 (DCB208), exact match; DCBP034 (DCBP034), exact match; DCBP520 (DCBP520), exact match; DCB204 (DCB204), exact match. Always confirm your device model number and the part number on your original battery before purchasing.
How do I verify compatibility before buying?
Check that your device label or manual shows DCST920 (or DCST920 String Trimmer). Compare the OEM part number, voltage, and connector on your original battery with the specs listed on this page before ordering.
Where do the listings on this page come from?
Current eBay listings for compatible batteries are shown below. Prices and availability change frequently on eBay — verify the listing details before you buy.