Address
304 North Cardinal St.
Dorchester Center, MA 02124
Email:info@xcwatt.com
Phone:

It started with a simple frustration.
Years ago, our founder ran a small repair shop. Every day, customers came in with laptops, power tools, and devices that had died long before their time. The culprit was almost always the same: a failed battery. But when he tried to find reliable replacements, the market offered little more than cheap, short-lived cells or overpriced “original” packs that were hard to source.
So he decided to build his own.
What began as a one-man bench with a soldering iron and a handful of battery cells has grown into a full-scale battery manufacturing company. We didn’t take shortcuts. We learned battery chemistry from the ground up – from lithium-ion characteristics to protection circuit design, from cell matching to safety testing. Over the years, we have supplied batteries for thousands of laptops, countless power tools, and hundreds of custom projects that demanded something the standard market couldn’t provide.
We are not the biggest battery company. But we might be one of the most experienced.
Today, our workshop is a modern facility with automated assembly lines and strict quality control. Yet the core belief remains the same as day one: every battery we make should be safe, durable, and worth your trust. Whether you need a replacement battery for an old laptop, a high-drain pack for your drill, or a completely custom shape for a unique device, we apply the same care and expertise.
We also know that a good battery is only half the story. The other half is service. That’s why we offer comprehensive warranties, fast responses, and honest advice. No overpromises. Just reliable power, built by people who care.
Our story is still being written – and we’d love for you to be part of it. Whether you are an individual with a broken battery or a business looking for a custom energy solution, talk to us. Let’s build something that lasts.

We keep our promises. No overpromising, no hidden fine print.
From cell selection to final assembly, safety is never a compromise.
We constantly improve chemistry, design, and process.
We promise every battery is built to last, tested to the limit.
We listen, we advise, we deliver – tailored to your real needs.
To our people, our community, and the environment we share.