Batteries

Batteries keep your tools, test equipment, and jobsite lighting running, from compact AA and AAA cells to heavy-duty power tool packs. This category brings together alkaline batteries for everyday devices, rechargeable batteries for cost-effective use, and specialized chemistries designed for high-demand applications.

Choose the right chemistry for the job. Alkaline batteries suit remotes, flashlights, and meters with moderate draw. Lithium primary cells deliver long shelf life and better cold-weather performance. NiMH rechargeable AA and AAA batteries cut waste and save money over time, especially with a smart charger. Lithium‑ion batteries power cordless drills, saws, impact drivers, and jobsite radios; match the voltage and amp-hour rating (Ah) your tool requires for runtime and performance. Sealed lead-acid (SLA) and AGM batteries support UPS systems, emergency lighting, alarms, and portable power packs. Button and coin cell batteries (like CR2032) keep calipers, laser levels, and timers precise.

Look for capacity (mAh or Ah), max discharge rate, cycle life, self-discharge, and operating temperature range. Lighter lithium‑ion batteries reduce fatigue, while higher Ah extends runtime. For kits, consider chargers with fast-charge profiles, cell balancing, and diagnostics. A battery tester helps verify health and spot weak cells before they cause downtime.

Practice safe use and storage. Keep batteries dry, avoid shorting terminals, and store lithium‑ion around 40–60% charge in a cool place. Do not deep-discharge packs or mix chemistries. Recycle spent batteries through certified programs; many retailers accept alkaline, rechargeable, and button cells.

Buying tips: stock up with bulk batteries to lower cost per cell, check date codes for fresh inventory, and choose reputable suppliers to avoid counterfeits. Verify compatibility by platform, voltage, and connector, and consider warranty support for power tool batteries used daily on site. Popular picks include AA batteries, AAA batteries, 9V batteries, CR2032 coin cells, lithium‑ion replacements, smart chargers, and rugged battery testers.