Expander is added to the battery’s negative active material to improve capacity, cold cranking performance, cycle life, charge acceptance, and partial-state-of-charge cycling. Hammond offers more than 120 formulations precision-engineered to a wide variety of needs.

Automotive SLI
600 SERIES
Custom formulas to optimize cranking and high-temperature performance.
Motive Power
Deep Cycle
100 SERIES
Proven formulations for deep-cycling performance for forklifts, golf cars, floor scrubbers, and e-Bike batteries.

Stationary
Float
200 SERIES
Specially designed for float applications to maintain long battery life.
Industrial
PSoC
ENDURANCE SERIES
Advanced expander formulations for partial-state-of-charge applications such as opportunity rapid charge and off-grid telecommunications towers.


Motorcycle
500 SERIES
Custom expander formulations to provide excellent starting capability and long cycle life.
Start-Stop
OEM
CAPACITY SERIES
Advanced expander formulations for Start/Stop applications.

Our E=(LAB)² offers research, analysis & battery testing.
We make oxides for automotive & industrial applications.
GravityGuard™ reduces acid stratification in lead batteries.
Look for us at BCI 2023
In Louisville, Kentucky!
We’re looking forward to seeing new faces and greeting old friends at this year’s BCI Convention + Power Mart Expo! Mark your calendar for April 23-26 in Louisville, Kentucky.
Look for us at BCI 2023
In Louisville, Kentucky!
We’re looking forward to seeing new faces and greeting old friends at this year’s BCI Convention + Power Mart Expo! Mark your calendar for April 23-26 in Louisville, Kentucky.