LTC-314C · Semi-Solid LFP

Built for −40°C.
Engineered for the grid.

A 314Ah semi-solid LFP cell that delivers more than 80% of rated capacity at −40°C discharge and accepts charge down to −20°C — purpose-built for cold-climate energy storage, telecom backup, and industrial deployments where standard LFP loses half its capacity in winter.

314 Ah
Nominal Capacity
−40 °C
Discharge Floor
3000 + Cycles
100% DOD · 70% Retention
Semi-Solid LFP
Cell Chemistry

The cold makes
standard cells useless.

Standard LFP cells stop discharging at −10°C and cannot accept charge below 0°C — making half a year of operation impossible for northern energy storage, telecom backup, and grid-scale deployments. The LTC-314C retains operation across the full deployment temperature range.

Performance Metric Standard LFP LTC-314C Semi-Solid LFP
Discharge Operating Range
Cell temperature
−10 to 50°C
Stops Below −10°C
−40 to 50°C
Full Winter Operation
Charge Operating Range
Cell temperature
0 to 50°C
No Charge Below 0°C
−20 to 50°C
Charge at 0.2C @ −20°C
Capacity @ −40°C Discharge
1C, 2.0–3.65V, fresh cell
N/A
Outside Operating Range
> 80%
Of Rated Capacity
Capacity @ 50°C Discharge
0.1C, 2.5–3.65V, fresh cell
~ 95%
Typical Performance
> 98%
High-Temp Stability
Cycle Life
100% DOD, 70% retention, 300±20Kgf preload
2000–3000
Cycles, Typical
> 3000
Cycles, Validated

Performance figures from manufacturer specification (Doc QA-TDD-TO-0007 Rev A0) and validated lab test reports. Reference 25±2°C standard charge/discharge unless otherwise noted.

Validated test results

Lab measurements · Sample tested
5°C Charge / Discharge
89.5%
Energy efficiency at low temperature, full charge/discharge cycle.
45°C Charge / Discharge
102–103%
Volumetric efficiency at high temperature, with energy efficiency > 97%.
1C Discharge Temp Rise
8.8°C
Continuous discharge temperature rise at rated 1C current.
Internal Resistance
0.23
AC 1kHz @ 30% SOC, fresh cell. Specification: 0.2–0.3 mΩ.

Cell Specifications

LTC-314C · Prismatic Aluminum Case
Electrical & Mechanical
Cell Model LTC-314C
Chemistry Semi-Solid LFP
Nominal Capacity 314 Ah
Nominal Voltage 3.2 V
Typical Energy > 1004.8 Wh
Operating Voltage 2.5–3.65 V (0~50°C)
2.0–3.65 V (−40~0°C)
Internal Resistance 0.2–0.3 mΩ
Dimensions (W × H × T) 173.5 × 207 × 71.5 mm
Weight 5.53 ± 0.15 kg
Self-Discharge ≤ 3% / month @ 25°C
Charge / Discharge & Environment
Standard Charge 0.5C CC-CV to 3.65V
Max Continuous Charge 1C (314 A) @ 25°C
Max Continuous Discharge 1C (314 A)
Charge Temperature −20 to 50°C
Discharge Temperature −40 to 50°C
Storage Temperature −20 to 45°C
Cycle Life > 3000 cycles
100% DOD · 70% retention
Altitude Range ≤ 2000 m
Communication Pack-level BMS required
Preload Requirement 300 ± 20 Kgf

Safety & Certifications

All abuse tests passed
Over-ChargeNo fire · No explosion
Over-DischargeTemp rise < 20°C
Short CircuitNo fire · No explosion
Nail PenetrationTemp rise < 30°C
Extrusion (50 kN)No fire · No explosion
Drop Test (1.5 m)No fire · No explosion
Low PressureNo leak · No fire
Thermal RunawayNo fire · No explosion

Compliant with UL 1973 · IEC 62619 · UN 38.3 · GB/T 36276-2023 · GB/T 31485-2015. Full test reports available under NDA.

Built for the grid.
Engineered for the cold.

The LTC-314C is a grid-scale storage cell — same 314Ah prismatic format as mainstream BESS deployments, but operable across the full deployment temperature range of northern, high-altitude, and arctic environments.

01 / Energy Storage

Cold-Climate BESS

Grid-scale and utility-scale battery energy storage in regions where standard LFP loses up to half its winter capacity — keeping wind, solar, and frequency-regulation systems operational year-round.

  • Wind + solar pairing in northern continental climates
  • Grid frequency regulation, peak shaving, time-shifting
  • Commercial & industrial behind-the-meter storage
  • BESS containers deployed in Canada, Northern US, Scandinavia, Northern Asia
GB/T 36276 UL 1973 Grid-Scale
02 / Telecom and Tower

Northern Telecom Backup

5G and 4G tower backup systems in cold-climate regions where lead-acid batteries fail in 2–3 winters and standard LFP can't charge below 0°C — eliminating costly winter site visits.

  • Off-grid and unmanned tower sites
  • Northern 5G rollout: Canada, Alaska, Scandinavia, Russia
  • Lead-acid to LFP replacement programs
  • Edge data center backup at high latitude
IEC 62619 −40°C Operable Long Cycle
03 / Mining and Energy

Mining, Oil and Gas Sites

Energy storage at remote arctic and sub-arctic mining, oil, and gas sites — pairing with diesel generation for fuel savings, peak shaving, and zero-emission operation windows.

  • Diesel hybrid peak shaving on remote sites
  • Alaskan and Canadian oil & gas field power
  • Mining haul truck charging infrastructure
  • Frontier site microgrid integration
Diesel Hybrid Remote Site 3000+ Cycles
04 / Microgrid and Research

Microgrid and Research Stations

Off-grid microgrids and polar research infrastructure — where supply chains are seasonal, maintenance windows are short, and battery failure means months without power.

  • Remote village and indigenous community microgrids
  • Polar research stations (Arctic & Antarctic)
  • Emergency response & disaster relief power
  • Military forward operating bases in cold theatres
Off-Grid Polar Rated Low Maintenance
Request Engineering Sample

Spec the cell to
your deployment.

Tell us your project: voltage platform, energy capacity, deployment temperature, certification path, and target geography. We engineer cell-to-pack systems around the LTC-314C — and ship engineering samples for testing on your bench.

Single-cell samples for lab characterization
Module-level prototypes (multiple cells in series/parallel)
Full pack integration with BMS and thermal management
UL 1973 / IEC 62619 / UN 38.3 certification support
Custom voltage platforms from 51.2V to 1000V+
Cold-climate validation testing on request
Request Datasheet · Engineering Sample

Half a year of
frozen capacity.

Northern energy storage operators lose months of operation each winter because standard LFP wasn't built for the cold. The LTC-314C was. Request the full datasheet, the validated test reports, or an engineering sample for bench evaluation.