No heating required at -40℃
For unheated cabinets, alpine sites, northern Russia and similar locations, the heater and its energy drain are simply gone. That is energy that stays available for the load instead of warming the battery.
48V Sodium-Ion Telecom Battery 100–200Ah
A 48 V sodium-ion battery for telecom base stations, built for sites where temperature is the hard constraint. Our standard 48 V LiFePO4 pack needs a heating strategy below freezing; this sodium-ion version discharges down to -40℃ without a heater, which removes both the heater power draw and the maintenance call-outs that come with it.
Key Features
Transport and storage at 0 V
Sodium-ion cells tolerate full discharge to 0 V, simplifying shipping, warehousing and spare-unit storage compared with lithium, which must be held at a partial state of charge.
Smart BMS with standard interfaces
RS485 / CAN as standard, with an SNMP gateway option so SOC, SOH, cell voltage and temperature report into the operator's existing NMS — the same integration path as our LiFePO4 telecom range.
Cost stability for multi-year rollouts
Sodium is abundant and not subject to lithium or cobalt price volatility. For operators tendering a multi-year site rollout, this reduces exposure to raw-material swings between tender and delivery.
Complements rather than replaces LiFePO4
Where energy density and cycle life dominate, LiFePO4 remains the better choice — we make both. The sodium-ion option exists for the sites where low temperature drives the design.
Technical Specifications
| Chemistry | Sodium-ion (Na-ion) |
|---|---|
| Nominal voltage | 48 V DC |
| Capacity range | 100 Ah – 200 Ah |
| Discharge temperature | Down to -40℃ — no pre-heating required |
| Charge temperature | (please supply) |
| Cycle life | (please supply, cycles @ DoD) |
| Energy density (cell) | Typical sodium-ion: 100-140 Wh/kg — lower than LiFePO4, stated for accuracy |
| BMS | Smart BMS, RS485 / CAN (SNMP gateway optional) |
| Balancing | (please supply) |
| Storage / transport state | Can be discharged to 0 V |
| Dimensions | (please supply, mm) |
| Weight | (please supply, kg) |
| Certification | (please supply — UN38.3 required for transport) |
Applications
Cold-climate BTS sites
Where heater power draw or heater maintenance is the constraint.
Off-grid solar BTS
Deep daily cycling in unheated enclosures.
Alpine & high-altitude sites
Low ambient temperature throughout the year.
Spare-unit fleets
Units stored at 0 V and commissioned when needed.
Frequently Asked Questions
When should I choose sodium-ion over LiFePO4 for a telecom site?
When low temperature is the binding constraint. If your site routinely sits below -20℃ and you are currently budgeting heater energy, heater maintenance or reduced available capacity in winter, sodium-ion is worth evaluating. If the site is temperate and you are optimising for cycle life and energy density, our LiFePO4 range is the better fit — we manufacture both and will say so either way.
Does it need a heater at -40°C?
No heating is required for discharge, which is the main design change compared with a lithium installation. Charging behaviour at low temperature is specified per model — contact us with your site's temperature profile and we will confirm the charging envelope.
Can it report into our existing NMS?
Yes. The BMS exposes RS485 / CAN, and we can supply an SNMP gateway so SOC, SOH, cell voltage, temperature and alarms appear in your existing network management system, the same way our LiFePO4 telecom batteries do.
Is the cycle life lower than your LiFePO4 telecom battery?
Sodium-ion cycle life is generally lower than LiFePO4 — this is a genuine trade-off rather than a spec-sheet detail. For sites chosen on cold-weather performance or transport/storage simplicity, the trade is usually worthwhile. We will give you both options' numbers so the comparison is made on data.
How is it shipped?
Sodium-ion cells can be discharged to 0 V for transport, which removes the partial state-of-charge restriction that applies to lithium. UN38.3 test documentation is provided with every shipment.
Related Products
- 48V LiFePO4 Telecom Battery 50-200Ah
- UPS Battery 384V LiFePO4
- Industrial & Commercial BESS
- All Battery & ESS Products
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