DIY Cores

Welcome to West Coast Battery Builders rebuild cores page. This is a professionally rebuilt core for your power tool battery. All you need to do is disassemble the case of your battery and solder your existing connector on our new core. Your battery pack will be good as new. By just purchasing the core from us you are saving S&H charges to ship your battery to us to rebuild plus you will receive your battery faster. Cores are fully tested prior to shipment. Standard warranty does not apply to this product as we cannot warranty work/conditions not under our control. This is a quality product and with proper installation will provide excellent service.

You must enter the make and model number of the battery in the space provided once you add it to your shopping cart. Failure to do so will delay your order.


This is a professionally rebuilt core power tool battery. All you need to do is disassemble the case of your battery and solder your existing connector on our new core. Your battery pack will be good as new. By just purchasing the core from us you are saving S&H charges to ship your battery to us to rebuild plus you will receive your battery faster.

Enter the make and model of your battery pack in the text box that appears in the shopping cart so we know what core to make for you.




Core 7.2V NiCad 2100mAh $25.00



Core 9.6V NiCad 2100mAh $27.00



Core 12V NiCad 2100mAh $29.00



Core 13.2V NiCad 2100mAh $32.00



Core 14.4V NiCad 2100mAh $34.00



Core 15.6V NiCad 2100mAh $36.00



Core 16.8V NiCad 2100mAh $38.00



Core 18V NiCad 2100mAh $39.00



Core 19.2V NiCad 2100mAh $45.00



Core 24V NiCad 2100mAh $60.00