The short answer: remote sites are specified by autonomy hours at a given load, not by battery capacity. A site drawing 200 W with a 12-hour target needs about 2.4 kWh usable; at 80 % depth of discharge that is a 3 kWh pack. We size from the site load curve, which is why there is no single “telecom model” to quote.
One working day to a written answer · sample from one unit
Every telecom enquiry starts the same way: site load in watts, autonomy in hours, temperature range, and whether the site is grid-tied or solar-hybrid. The battery follows from those four. Quoting a unit without the load curve is how sites end up undersized, and undersized sites fail in the second winter.
DC systems at 24 V and 48 V, LiFePO4 with an integrated BMS, from 1 kWh to 10 kWh per site, with solar input for hybrid sites. AC-output variants from 300 W to 10 kW where the load is conventional equipment rather than a DC plant.
Protection covers over-charge, over-discharge, over-temperature, short circuit and reverse polarity, with dry-contact alarms for remote monitoring. CE, RoHS and UN38.3 documentation ships with every unit; for multi-site rollouts we work from your site list and return a per-site configuration.
Because the constraint is usually cycle life and temperature, not energy. Doubling capacity to cover a bad winter usually costs less than fixing the thermal design, but it doubles the cells you will replace in year four. We would rather size it once.
Yes — dry contacts as standard, and RS485 or CAN on request. Tell us the protocol your NMS expects and we confirm it in the build sheet rather than promising it after the order.
For outdoor sites we quote an IP54 or IP65 cabinet as part of the system, with the thermal design included. A battery in an unventilated box is a warranty claim waiting for summer.
First article in about two weeks after spec sign-off, production in four to six weeks. Rollouts are shipped in phases so the first sites can be commissioned while the rest are built.
Camera count, adapter rating or cabinet bus voltage is enough to start. You get a model, a runtime figure and the document list for your market.