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What really stands out to us is that cycle life figure — over 1500 cycles on these 2V cells, and we’ve seen that hold up in our underground mining locomotives running three shifts a day.
That means you’re not swapping batteries every year or two, and for solar storage it basically pays for itself over time because the low discharge rate keeps the charge sitting there for days without bleeding off.
We’ve been buying the PzS series for about four years now, and the capasity range from 100 up to 1860Ah covers everything from small tunnel locos to big forklift banks — you just pick amp-hour rating that fits your load profile.
One detail that caught me off guard at first is the fixed insallation design; these aren’t meant for portable gear like a boat trolling motor where you’d move them around, they’re better suited for stationary solar arrays or bolted-down equipment where vibration isn’t constant.
Anyway, ordering is pretty straightforward — we usually go through a distributor who quotes with the IEC 60254 standard and provided a COA on each pallet, and teh lead time from China is about 30 days or so depending on the MOQ (typically 50 units or more for custom capacity).
The case comes in black or gray ABS, which holds up well in dusty mine environments, and you’ll want to specify whether you need the electrolyte filled or dry shipped — that’s something a lot of buyers forget to ask until the pallet arrives.
The MOQ for our standard PzS batteries is typically 50 units, but it can vary based on the specific capacity and customization you need. Just let us know your specs and we can confirm the exact number.
Yes, every shipment comes with CE, ISO9001, and ISO14001 certification documents. We also test to IEC 60254 standards, so you get the paperwork you need for compliance.
We can customize the case color for larger orders, but black and gray are standard for our PzS line. If you need a specific color, just reach out with your volume and we'll see what we can do.
For standard capacities like 100Ah, lead time is usually around 15-20 working days after order confirmation. Custom specs or larger capacities might take a bit longer, but we'll give you a firm timeline upfront.
Store them in a cool, dry place away from direct sunlight and keep them fully charged. We recommend recharging every 3-6 months to maintain cycle life, and we can include storage guidelines with your shipment.
