The batteries in our lights have changes over the years. Here's a quick guide to better understand your battery.
In year 5, Lezyne introduced it's first LED line. It included the Super Drive, the Power Drive, and the Mini Drive.
The Super Drive and the Power Drive utilized an 18650 battery, while the Mini Drive used a 123A battery. They were charged by mini USB, and you could open the rear of the light to swap the battery if desired.
We did a redesign with the Y6 line. The look of the Super Drive, Power Drive, and Mini Drive changed, but they continued to use the same batteries. We also switched to micro USB ports for charging.
Also in Y6, we introduced a few new models. The Mega Drive used a proprietary 2 cell 18650.
The Macro Drive and the Micro Drive used the 18650 and the 123A respectfully, but they were harder to access - requiring a special tool or some ingenuity to press the insides out.
The Femto Drive lights took and still take two CR2032 batteries, and they are not rechargeable like the rest of the line.
Design-wise, not much changed in Y7. The Deca Drive was introduced, looking similar to the Mega Drive and using the same battery. We also introduced the Zecto Drive lights.
The Zecto Drive was the first light we introduced that had a battery that we do not consider replaceable.
Y8 saw the introduction of the Hecto Drive light, a version of the Micro Drive with a lower price and lumen output. It's battery was the same as the Micro Drive.
We also introduced the KTV series of lights. They followed the Zecto Drive in not having replaceable batteries.
Year 9, Year 10, and Year 11
All of our large lights had a pretty major update to their design in Y9. In order to increase lumen output and decrease weight, all batteries were wired in. As a result, starting in Y9, our batteries are no longer easily replaceable. Under some circumstances the light can be sent in to have the battery replaced, but it's best to check with Lezyne USA if you're in the United States, or if you're outside the US, your original place of purchase to see if it's possible.
We also introduced the Strip Drive lights in Y9, redesigned the KTV Drive in Y10, and introduced the Laser Drive and Lite Drive in Y11. They, like the similarly sized Zecto and KTV lights, do not have replaceable batteries.
Side note on Year 11...
In Y11, we introduced the Infinite Light Power Pack. While it does not have a replaceable battery, the Power Pack does give you the option of extra battery power for our Y11 Deca Drive 1500i and Y11 Power Drive 1100i.