Backup Batteries | McMaster-Carr

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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Battery Capacity

Less than 10,000 mA·h

10,000 mA·h to 19,999 mA·h

20,000 mA·h to 99,999 mA·h

100,000 mA·h to 199,999 mA·h

200,000 mA·h or greater

For Wire Gauge

20-Hour Rate Capacity

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1,034 Products

Electrical Power, Networking, and Controlling

Batteries

Household, button/coin cell, large-cell, and cordless tool batteries

426 products

Backup Power Supplies

Transfer power to a built-in battery during partial and complete outages

19 products

Battery Chargers

Charge everything from large-cell to cordless tool to household batteries

54 products

Battery Adapters

Use a 20-volt battery in an 18-volt Dewalt cordless tool

1 product

Battery Jump Starters

Clamp to large-cell batteries to start vehicles and machines when you don't have access to an outlet

5 products

Battery Holders

Create an electrical connection between batteries and contacts to power equipment

60 products

Battery Surge Protectors/Charge Monitors

Display the charge level of a large-cell battery while protecting it from power surges

1 product

Battery Connectors

Quickly make and break connections between a battery and a charger or equipment

43 products

Solar Panels

Charge large-cell batteries with sunlight

5 products

Battery Trays

Drain fluid under large-cell batteries to prevent pooling

2 products

Battery Retaining Clips

Mount batteries inside battery holders

7 products

Battery Springs

Replace springs in battery holders and contacts

8 products

Battery Boxes

Store and protect batteries from dirt, debris, and water

8 products

Jumper Cables

Jump-start a dead battery

12 products

Battery Terminals

Connect cable to battery posts to power vehicles and machines

131 products

Battery Contacts

Add or replace contacts in battery holders and circuit boards

23 products

Battery Clip Retaining Pins

Hold battery retaining clips closed to stop batteries from coming loose

2 products

Battery Charger/Starters

Send a starting current to large-cell batteries and fully charge them

4 products

Capacitors

Deliver a burst of electrical energy for a short time to boost power to motors and other equipment

87 products

Jumper Cords

Ready to connect with a terminal at one or both ends

10 products

Battery Cords

Connect batteries to each other

31 products

USB Chargers

Power up mobile devices and other electronics

1 product

Welding Cable

Resist abrasion while carrying current for welding

8 products

Power Cords

Connect equipment and devices to a power source

1 product

Extension Cords

Extend the reach of power from an outlet

5 products

Battery Wire

Transmit power from batteries in vehicles, generators, and appliances

27 products

Battery Switches

Turn the knob to alternate between two batteries without interrupting power

1 product

Disconnect Switches

Make sure equipment stays turned off during inspection and maintenance

10 products

Electrical Enclosures

House and protect power supplies, control panels, and other electrical equipment

13 products

Measuring and Inspecting

Battery Testers

Measure the health of rechargeable batteries, or check if it's time to replace disposable batteries

6 products

Shunts

Measure the current flowing through a circuit when the current is too high to only use a meter

5 products

Battery Discharge Indicators

Install on lift trucks and other electric vehicles to display battery condition

3 products

Density Meters

Measure the density of liquids to check concentration; test battery fluid for a charge

10 products

Concentration Meters

Measure the concentration of solutions; also known as refractometers

2 products

Facility and Grounds Maintenance

Flush Valve Replacement Parts

Replace virtually any part in the most common flush valve brands

1 product

Containers, Storage, and Furniture

Recycling Containers

Dispose of recyclables like paper and cans as well as batteries and light bulbs

2 products

Battery Carriers

Add a handle to a large-cell battery to lift and move it

3 products