Brooks Equipment BAT620 Battery Replacement 6V/3.8AH Sealed Lead Acid Battery: 2.60Lx1.30Wx4.80H. Terminals: F1, 0.187 MALE PUSH ON TERMINAL. Chemistry: SLA Or VRLA Valve Regulated. Brooks Equipment BAT620 Replacement Battery is designed to meet or exceed the original battery in quality, durability, and performance. THIS IS A REPLACEMENT BATTERY AND MAY BE A DIFFERENT BRAND, BUT MEETS OR EXCEEDS THE OEM SPECIFICATIONS.