48 V sodium-ion telecom batteries (50/100/200 Ah, 2.4–9.6 kWh) for telecom base stations, built for sites where temperature is the hard constraint. Compared with LiFePO4, sodium chemistry keeps more of its usable capacity in deep cold and discharges to -20℃ with no heater (cells rated -35℃ to 65℃) — less winter derating, no heater power draw and no heater maintenance call-outs.
Discharge is rated from -20℃ and the sodium cells themselves are rated -35℃ to 65℃, with better capacity retention in deep cold than LiFePO4. For unheated cabinets, alpine sites and northern Russia that means less winter derating — and no heater to power or maintain.
Rated 4,000 cycles to 80% SOH (25℃, 0.5C/0.5C) — in the same class as our LiFePO4 telecom packs and far beyond lead-acid, which changes the site TCO maths over a ten-year horizon.
RS485 and CAN over RJ45 as standard, plus an onboard LCD, Bluetooth monitoring, dry contact and air switch. An SNMP gateway is available on request so SOC, SOH, cell voltage and temperature report into the operator's existing NMS — the same integration path as our LiFePO4 telecom range.
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.
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.
| Chemistry | Sodium-ion (Na-ion), 16S10P — NaCR32140 3.0 V cells |
|---|---|
| Nominal voltage | 48 V DC (operating 32–58.4 V; 50/200 Ah: 40–54.4 V) |
| Rated capacity | 50 / 100 / 200 Ah (2.4 / 4.8 / 9.6 kWh) |
| Charge voltage | 58.4 V max (cell cut-off 2.0–2.3 V) |
| Charge / discharge current | 50Ah: 25 A std / 50 A max; 100Ah: 50 A std / 100 A max; 200Ah: 100 A std / 200 A max |
| Cycle life | 4,000 cycles to 80% SOH (25℃, 0.5C/0.5C) |
| Operating temperature | Charge 0℃ to 45℃; discharge -20℃ to 60℃ (cells rated -35℃ to 65℃) |
| Energy density | ≈60–80 Wh/kg at pack level — lower than LiFePO4 |
| BMS & monitoring | Over-charge, over-discharge, over-current, short-circuit and temperature protection with balancing; RS485 + CAN (RJ45), LCD, Bluetooth, dry contact, air switch |
| Storage state | Ships at factory charge (40–48 V); long-term storage 48–52 V, top up every 3 months |
| Dimensions | 661 × 440 × 176 mm ±2 (mounting ears and UN packaging included) |
| Weight | 60 kg ±1.2 kg |
| Certification | UN38.3 compliant; UN transportation test summary (T.1–T.8) supplied with shipment — request a copy at sales@xgwtech.com; ships in UN carton / UN wooden box + EPE |
| Model | Nominal energy | Dimensions (W×D×H) | Weight | Charge current | Max continuous discharge |
|---|---|---|---|---|---|
| 48V 50Ah | 2.4 kWh | 442 × 440 × 134.5 mm | 40 kg ±2 | 25 A std / 50 A max (0.5C/1C) | 50 A |
| 48V 100Ah | 4.8 kWh | 661 × 440 × 176 mm | 60 kg ±1.2 | 50 A std / 100 A max (0.5C/1C) | 100 A |
| 48V 200Ah | 9.6 kWh | 661 × 440 × 220 mm | 118 kg ±2 | 100 A std / 200 A max (0.5C/1C) | 200 A |
All models: 16S sodium-ion, RS485/CAN BMS, IP20, 19-inch rack, cycle life ≥4,000 @ 80% DOD, charge 0℃–45℃ / discharge -20℃–60℃ (cells -35℃–65℃). 100 Ah charges to 58.4 V; 50/200 Ah to 53.6–54.4 V.
Where heater power draw or heater maintenance is the constraint.
Deep daily cycling in unheated enclosures.
Low ambient temperature throughout the year.
Held at the recommended 48–52 V storage voltage with a top-up every 3 months, commissioned when a site needs them.
This page covers sodium-ion; the decision against LiFePO4 and lead-acid comes down to temperature and volume tolerance.
| Cold performance | Full at -20°C, no heater | Reduced, heater draws power | Severe loss |
|---|---|---|---|
| Cycle life | 4,000 cycles | 6,000 cycles | 300-500 |
| Energy density | ~80 Wh/kg | Higher | Low |
| Best for | Cold / remote BTS | Tropical / general | Legacy only |
Choose sodium-ion when winter capacity or heater-power draw drives your design; otherwise the LiFePO4 48V telecom pack gives more kWh per kilo. Both are catalogued in the Battery & ESS hub.
When winter performance and lifecycle cost drive the design. If your sites see months of sub-zero temperatures and you are budgeting heater energy, heater maintenance or winter capacity derating, 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.
No heater is required for discharge down to -20℃, and the sodium cells themselves are rated from -35℃. Charging is specified from 0℃ to 45℃ — contact us with your site's temperature profile and we will confirm the charging strategy for your coldest months.
Yes. The BMS exposes RS485 and CAN over RJ45, with an onboard LCD and Bluetooth for local monitoring. We can also 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.
The pack is rated 4,000 cycles to 80% SOH (25℃, 0.5C/0.5C) — somewhat below our 6,000-cycle LiFePO4 telecom range but well beyond lead-acid. The genuine trade-off is energy density: about 80 Wh/kg at pack level, so sodium needs more volume or weight for the same kWh. We will give you both options' numbers so the comparison is made on data.
The pack ships at its factory charge state (40–48 V) in UN-certified packaging — UN carton or UN wooden box with EPE, on export pallets. For storage beyond three months, hold 48–52 V and top up quarterly. Ask us for the current UN38.3 transport documentation for your import market.
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