One Platform.
Every Application.
Five sodium-ion BESS products — from 12V residential to 279 kWh commercial — built on non-flammable NFPP chemistry. Choose Smart EMS with built-in intelligence, or Core BESS for open-protocol integration.
Intelligent BESS with Built-In Software
Smart EMS products ship with EnergiOS™, Coulomb AI™, and GridIQ™ pre-installed — no third-party EMS, no integration fees, no separate licensing. Revenue-ready from day one.
Series-B
279 kWh · Fully Intelligent · Turn-Key
The only commercial BESS that ships with a fully integrated AI energy platform. EnergiOS™, Coulomb AI™, and GridIQ™ are built in — not bolted on.
Series-R
48V · 200 Ah · 9.8 kWh · Wall-Mount
Wall-mount residential and light commercial storage with integrated smart monitoring, solar self-consumption optimization, and time-of-use management.
Smart EMS — Side-by-Side Comparison
| Specification |
Series-B
Commercial BESS
|
Series-R
Residential / Light Commercial
|
|---|---|---|
| Energy & Power | ||
| Nameplate Energy | 279 kWh | 9.8 kWh |
| Usable Energy | 229 kWh (85% DOD) | ~8.3 kWh (85% DOD) |
| Max Power | 140 kW | Inverter-dependent |
| Voltage | 634–994 VDC | 48V nominal |
| Duration | 2.2–10 hrs | Application-dependent |
| Chemistry & Longevity | ||
| Chemistry | Sodium-Ion NFPP | Sodium-Ion NFPP |
| Cycle Life (80% DOD) | 6,000+ | 6,000+ |
| Design Life | 20 Years | 20 Years |
| Operating Temp | −40°C to +55°C | −20°C to +60°C |
| Smart Technology | ||
| EMS Software | EnergiOS™ Built-In | Smart App + Remote Monitoring |
| AI Optimization | Coulomb AI™ Built-In | TOU & Solar Optimization |
| Grid Services | GridIQ™ — DR, VPP, Dispatch | — |
| Remote Diagnostics | Yes — OTA Updates | Yes |
| Communication | Modbus TCP / SCADA-ready | App / BMS |
| Installation & Format | ||
| Form Factor | Outdoor Cabinet (turn-key) | Wall-Mount |
| Inverter Included | Yes (integrated PCS) | No (pairs with any 48V inverter) |
| Thermal Runaway Risk | Zero | Zero |
| Target Customer | C&I, Multi-tenant, Microgrid | Homeowners, Small Commercial |
Open-Protocol Battery Platforms
Core BESS products deliver the chemistry, BMS, and safety — you bring the inverter, EMS, and enclosure. Three open protocols (Modbus TCP, CAN Bus, RS-485) integrate with any platform. No licensing fees. No lock-in.
Series-DC
279 kWh · Open Protocol · Bring Your Own EMS
The battery core for integrators, EPCs, and OEMs. You supply the inverter and EMS — we handle the chemistry, BMS, and safety.
Series-M
48V · 300 Ah · 14.4 kWh · IP54
Drop-in replacement for 48V lead-acid traction batteries. IP54-rated, 150A continuous discharge, non-flammable sodium-ion chemistry for enclosed vehicles.
Series-S
12V · 30 / 60 / 100 Ah · Drop-In
Direct drop-in replacement for 12V lead-acid batteries. Three capacity options, non-flammable chemistry, zero maintenance — for RVs, marine, solar, and backup.
Core BESS — Side-by-Side Comparison
| Specification |
Series-DC
Commercial DC Block
|
Series-M
48V Traction Battery
|
Series-S
12V Drop-In
|
|---|---|---|---|
| Energy & Power | |||
| Nameplate Energy | 279 kWh | 14.4 kWh | 0.36 / 0.72 / 1.2 kWh |
| Nominal Voltage | 821 VDC | 48V | 12V |
| Capacity | — | 300 Ah | 30 / 60 / 100 Ah |
| Max Current | Inverter-dependent | 150A continuous | BMS-limited |
| Chemistry & Longevity | |||
| Chemistry | Sodium-Ion NFPP | Sodium-Ion NFPP | Sodium-Ion NFPP |
| Cycle Life (80% DOD) | 6,000+ | 6,000+ | 4,000+ |
| Design Life | 20 Years | 20 Years | 10 Years |
| Operating Temp | −40°C to +55°C | −20°C to +45°C | −20°C to +60°C |
| Integration & Protocols | |||
| Modbus TCP | ✓ | — | — |
| CAN Bus 2.0B | ✓ | — | — |
| RS-485 | ✓ | — | — |
| BMS Protections | 8 Intelligent | 8 Intelligent | 8 Intelligent |
| Form Factor & Target | |||
| Form Factor | Pallet-ship cabinet | Traction pack (IP54) | Drop-in module |
| Enclosure Rating | Outdoor-rated | IP54 | Standard |
| Target Customer | EPCs, Integrators, OEMs | Fleet operators, Warehouses | RV, Marine, Solar, Residential |
| Thermal Runaway Risk | Zero | Zero | Zero |
One Chemistry. Every Product.
Sodium-Ion NFPP — The Foundation of Every Coulomb System
Every product in the Coulomb portfolio — from the 12V Series-S to the 279 kWh Series-B — runs on the same sodium-ion NFPP (Non-Flammable Polyanion) chemistry. No thermal runaway. No maintenance. No compromise.
Ready to Find Your Solution?
Our applications engineering team will match you with the right system for your voltage, capacity, and integration requirements — at no cost.