Battery clamp excellent electrical and physical properties Standard Battery Clamp. Anchor Brand Standard battery clamp in black color features heavy-duty tension spring that offers positive connection on front/side. Clamp has a maximum current rating of 600 A and steel jaw with 1 maximum opening for convenience. • Color: Black. • Amperage: 600 A maximum. • Excellent electrical and physical properties. • Hammer-On copper connection. • Heavy-duty tension spring provides positive connection on front and side. • Vinyl insulation that is highly resistant to oil acid abrasion chemicals and ozone. • Cable/wire size: 1 AWG minimum 3 /0 AWG maximum. • Jaw opening: 1 in maximum. • Jaw material: Steel. • Weight: 1/2 lb. • Sold as 1 Each.