Customizable 3.6V 6500mAh ER26500M Lithium Thionyl Chloride Battery for Various Applications

When you're designing for remote metering or asset tracking, the biggest headache is usually power longevity, and that's where this chemistry actually delivers.

We're looking at a 3.6V nominal output with 6500mAh capasity, which is pretty much industry-standdard for an ER26500M form factor—26.2mm by 50mm, 55g, so it swaps cleanly into existing holders without reworking the enclosure.

It's non-rechargeable, obviously, so you're trading reusability for that 10-year shelf life at 20°C and a standard discharge current of 10mA; the max pulse current hits 2000mA if your device needs a quick burst, but don't treat it as a continuous draw spec.

The operating window runs form -55°C to +85°C, and what that means in practice is you can throw this into an outdoor gas meter in a Canadian winter or a pipeline monitor in the desert and it'll hold voltage better than most alkaline or even some other lithium primaries—just don't expect it to handle high-rate cycling, because the Li-SOCl2 chemistry isn't built for that.

We'll do custom terminals or labeling on the standard button top if your order hits MOQ (usually 500 units or so), and the cathode matrial here is NCM, so pay attention to storage—keep it under 30°C, ideally, to avoid accelerated self-discharge over those ten years.

Lead time typically runs 20-25 business days for stock variants, but if you need CE or UN38.3 documents gated to a specific batch, our company can package that with teh shipment—just confirm at quoting so the QC sheet matches your lot number.