Rebuild a Cordless Tool Bombardment

An affordable alternative to a new battery pack

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Introduction

Cordless tool batteries eventually fail, but replacement batteries can be amazingly expensive. To save money, consider rebuilding the battery pack.

Tools Required

Materials Required

  • Replacement battery cells
  • Rosin-core solder
  • Record
  • Wire

Power Tool Batteries: Supersede the Cells in the Battery Pack

When your power tool battery pack bites the dust, probably your first inclination is to purchase a new ane. But if the battery is out of production or the toll of a new ane is sky high, consider rebuilding it yourself instead of paying a professional person rebuilder. That'll save you well-nigh $25. You'll need new cells, a soldering iron and rosin-cadre solder, a glue gun, and some wire and tape. The whole procedure takes near an hour.

Almost ability tool battery packs use 1.vii-in. x .9-in. "Sub C" size batteries. Remove the screws that hold the pack together and yank the top off. Then remove the cluster of batteries and measure out ane of the cells. Then get the milliamp-hr (mAh) rating off the onetime batteries (or search online for the cell specs). If you lot're willing to spend more, upgrade to cells with a higher mAh rating—they hold more juice. Just make sure they have a discharge rating of 5C or higher. And ever buy cells with the tabs already welded in place (all-battery.com is 1 online battery seller). Then get to work.

Projection stride-by-footstep (ii)

Step one

Arrange and Glue

rebuild cordless tool battery hot glue

Lay out the get-go row of new cells on a flat surface and arrange the polarity and solder tabs in the aforementioned direction as the erstwhile pack, using the onetime battery pack equally a template. So glue them together with a hot-cook glue gun. This isn't the just thing you can do with hot mucilage.

Step 2

solder the cells battery pack

Protect the battery by clamping a heat sink onto the tabs before yous apply heat. And then solder the tabs together with rosin-cadre solder. Duplicate the process with the boosted rows of cells. Transfer the temperature sensor and insulators from the old battery and reinstall in the plastic instance. Charge it up, test information technology out and commencement your next domicile improvement projection.