Hyper Tough 20V Max 13" 20V 4.0Ah Brushless Battery Powered String Trimmer with Rapid Reload Trimmer Head, HT22-401-03-02 - Walmart.com
DEWALT 20V Cordless Brushless String Trimmer with 20V MAX Compact Lithium-Ion 4Ah Battery Pack and 12V to 20V MAX Charger DCST922BWCB240C - The Home Depot
Greenworks 80 Volt 16-Inch Cutting Diameter Brushless Straight Shaft Grass Trimmer (1 x 2.0Ah Battery and 1 x Charger) Green 2112302/ST80L211 - Best Buy
Greenworks 24V 13" Brushless TORQDRIVE™ String Trimmer with 4Ah USB Battery and Charger Included 2118202AZ - Walmart.com
RYOBI ONE+ HP 18V Brushless 13 in. Cordless Battery String Trimmer with 4.0 Ah Battery and Charger P20120 - The Home Depot