For use in floor-cleaning machines, lift trucks, personnel carriers, and other vehicles that require power over an extended time, these deep-cycle batteries can handle many charge/deep-discharge cycles. They are wet cell, so they contain electrolyte in an unsealed container and must be mounted upright. They may occasionally need to be filled with distilled water.

Reserve capacity is the number of minutes that a new, fully charged battery can continuously discharge at 25 amps at 80° F. Marine cranking amps is the maximum amps that a new, fully charged battery can continuously deliver for 30 seconds at 32° F.

Warning: Batteries should always be charged and discharged in a ventilated area.

These dual-purpose batteries provide a surge of power to start automobiles and other vehicles, and they deliver power over a long period of time. They're deep cycle, so they can handle many charge/deep discharge cycles. Because they are wet-cell batteries and contain electrolyte in an unsealed container, they must be mounted upright. They may occasionally need to be filled with distilled water.

Reserve capacity is the number of minutes that a new, fully charged battery can continuously discharge at 25 amps at 80° F. Marine cranking amps is the maximum amps that a new, fully charged battery can continuously deliver for 30 seconds at 32° F.

Warning: Batteries should always be charged and discharged in a ventilated area.

See the charge level of a large-cell battery while protecting it from power surges. These monitors also check the condition of your charging system.

Once fully charged, these starters store enough power to jump start a battery multiple times. All have reverse-polarity protection to prevent sparks and short circuits if the clamps touch or if they're not connected properly to a battery. They also have a USB port to charge mobile devices such as smartphones and tablets. To recharge, connect them to a USB port with the included cord.

Measure the voltage of your batteries as well as the current they can supply to check battery health.

Wheel these charger/starters to batteries that need maintenance. They provide higher starting currents than Handheld Charger/Starters for Large-Cell Batteries. All have reverse-polarity protection to prevent sparks and short circuits if the clamps touch or if they're not connected properly to the battery.

Small enough to carry, these charger/starters provide a 125-amp starting current. They have reverse-polarity protection to prevent sparks and short circuits if the clamps touch or if they're not connected properly to the battery. After the battery is fully charged, they continuously provide a low-level charge to maintain the battery without overcharging.

Charge up to eight batteries at once. After the battery is fully charged, these chargers continuously provide a low-level charge to maintain the battery without overcharging.

Bring batteries to these chargers for maintenance. To prevent overcharging, they automatically shut off when battery is fully charged.

Test large engine batteries that draw up to 500 amps. Turn the dial to vary the load applied to the battery to see how it performs at different loads.

Apply a fixed load to small engine batteries that draw up to 125 amps.

Testers with a 60/125-amp current load capacity offer two fixed loads. It is better for testing smaller batteries that draw up to 60 amps.

In addition to applying a fixed load to small engine batteries that draw up to 125 amps, this tester can check for defective alternator diodes.