Skip to content

Bulk discounts now auto apply starting at $50

All Products
Contact Us
Advanced-Materials
Future
Bulk-Discounts

All Products
Contact Us
Advanced-Materials
Future
Bulk-Discounts

Search

Item added to your cart

Battery Adapters - Battery Not Included

Snap-on

Snap-on
Snow Joe

Snow Joe
STIHL

STIHL
Strikemaster

Strikemaster
Toro

Toro
Worx

Worx

1
2

All battery adapters are designed and manufactured by Terrafirma Technology. Adapters are designed for use with batteries from other brands; compatibility with specific models is listed on each product page. We are not affiliated with DEWALT®, MILWAUKEE®, RYOBI®, KOBALT®, Porter Cable®, or any other brands.

Warning: To use this adapter safely, we recommend a fuse rated approximately 30% higher than the maximum current you expect to draw. We also recommend adding a low-voltage disconnect circuit or a timer to prevent the battery from dropping below the low-voltage threshold, which can damage the battery or shorten its lifespan. The typical low-voltage threshold is: (max battery voltage divided by 4.2) multiplied by 3.3. To protect your device, use a DC-DC converter to match the output voltage to your device's acceptable input range. We do not recommend purchasing our adapters without fully understanding how to use them properly and how to protect both the battery and the device you intend to power.

All power adapters are designed and assembled in Ohio, USA. Made from heat- and chemical-resistant material.

Payment methods

© 2026, terrafirmatechnology Powered by Shopify

Choosing a selection results in a full page refresh.
Opens in a new window.