LTO battery packs, engineered for power, fast charge, and cold
Custom lithium titanate battery packs from 24V to 800V+, with integrated BMS, thermal management, and UL 1973, IEC 62619, UN 38.3, and DOT certification handled in-house.
An LTO battery pack is a lithium-ion pack built on a lithium titanate oxide anode instead of graphite. That one substitution raises the anode potential to 1.55 V against lithium, which pulls full-cell nominal voltage down to roughly 2.2 to 2.4 V and cuts energy density well below LFP. What comes back in return is the reason the chemistry exists: continuous charge rates above 6C, charge acceptance below freezing, and manufacturer cycle ratings from 15,000 to 40,000.
Pacific Battery Company builds LTO packs to specification, sized to the voltage, current, duty cycle, and temperature range your equipment actually runs. We are chemistry-agnostic, so if lithium titanate is the wrong answer for your application we will tell you that and show the numbers behind it. For the full chemistry decision framework with datasheet figures, read when lithium titanate is the right call, and when it isn't.
What LTO gives up, and what it buys
Every LTO decision is the same trade made in different proportions. These are the figures that decide it.
| Property | LTO | LFP reference | Why it matters |
|---|---|---|---|
| Nominal cell voltage | 2.2 to 2.4 V | 3.2 V | About 40% more cells in series for the same pack voltage |
| Cell energy density | 46 to 70 Wh/kg typical | ~165 Wh/kg | Roughly a third the energy for the same mass |
| Continuous charge rate | Above 6C | 0.5C to 1C typical | Full recharge in minutes rather than hours |
| Charge temperature floor | Below 0 °C | 0 °C | No heater, no heater energy, no heater failure mode |
| Cycle life, manufacturer rated | 15,000 to 40,000 | 4,000 to 6,000 | Changes the asset from a consumable to a fixture |
| Cell cost per kWh | A multiple of LFP | Baseline | Only justified when cycles or charge speed dominate |
Toshiba's SCiB endurance testing reached 40,000 cycles at a 10C rate and 35 °C. Cycle figures always carry test conditions, so the number worth designing to is the one measured at your depth of discharge, C-rate, and ambient range, not the headline on a datasheet.
If the duty cycle is defined by energy, choose LFP. If it is defined by power, charge speed, temperature, or cycle count, price LTO. The chemistry is not better or worse, it is pointed at a different constraint.
LTO battery packs from 24V to 800V+
A lithium titanate battery pack runs higher series counts than LFP for the same system voltage. That is a design consideration, not a limit.
Cold-chain material handling, opportunity-charged floor equipment, and lead-acid replacements in service where the charger sees the pack many times a shift. Same footprint and terminal layout as the legacy battery.
AGVs, mobile robots, transit and shuttle platforms, and power-quality storage. Modular strings that scale capacity and C-rate independently, so a change in duty cycle does not restart the pack design.
DC bus buffering, turbine and generator hybridization, fast-charge infrastructure, and grid-side power service. Our 800V DC architecture runs a 348-cell series string landing at 800.4 V nominal, with high-voltage isolation, contactor management, and pre-charge engineered in.
Configurations outside these envelopes are normal work rather than an exception. Browse existing high-voltage configurations in the battery catalog, or send a duty cycle and we will size the pack around it.
Where an LTO battery pack earns its cost
The applications below share one trait: something other than energy per kilogram is the binding constraint.
Forklifts, AGVs, and floor equipment running three shifts with charge windows measured in minutes. A 6C charge acceptance turns a break into a full recharge and removes the battery swap and its charging room. See motive power solutions.
Freezer warehouses, arctic and high-altitude equipment, and outdoor winter duty. Charging below 0 °C without a heater removes both the parasitic heater load and a failure mode from the system.
Duty defined by cycles per day rather than hours of runtime. A pack rated in the tens of thousands of cycles is amortized across a service life measured in decades, not warranty periods.
800V DC buffering for generation assets and high-density compute loads, where the pack absorbs transients and load steps continuously rather than storing bulk energy.
Rail, transit, port equipment, and heavy mobile machinery. High charge acceptance means the pack takes the regen event instead of dumping it across a resistor bank.
Machinery cycling many times an hour for a design life longer than any graphite-anode pack will survive. See industrial and OEM solutions.
Designing around the LTO voltage window
Lithium titanate changes the pack engineering, not just the cell selection.
More cells in series means more monitoring channels and more balancing current to manage. Active balancing, multi-layer hardware and software protection, and CAN, RS485, Modbus, and Ethernet interfaces are standard. See battery management systems.
A pack charging above 6C moves heat whether or not the chemistry is tolerant of it. Cooling is sized to the actual duty cycle rather than to a nameplate number. See thermal management.
UL 1973, IEC 62619, UN 38.3, and DOT Class 9. Test planning, sample allocation, lab coordination, and final documentation are delivered as part of the program rather than handed back to your team.
LTO battery pack questions, answered
What engineering and procurement teams ask before specifying lithium titanate.
What is an LTO battery pack?
An LTO battery pack is a lithium-ion pack that uses lithium titanate oxide (Li₄Ti₅O₁₂) as the anode material instead of graphite. That single substitution raises the anode potential to 1.55 V against lithium, which drops full-cell nominal voltage to roughly 2.2 to 2.4 V and cuts energy density well below LFP. In exchange the cell accepts very high charge current, charges below freezing, and carries manufacturer cycle ratings of 15,000 to 40,000 cycles.
What voltages can a custom LTO battery pack be built in?
24V to 800V and above. Because LTO cells sit near 2.3 V nominal rather than the 3.2 V of LFP, any target system voltage needs roughly 40 percent more cells in series. Pacific Battery Company's 800V DC LTO architecture uses a 348-cell series string landing at 800.4 V nominal. Low and standard voltage LTO packs are built the same way, sized to the application rather than to a catalog part.
How long does an LTO battery pack last?
Manufacturer ratings run from 15,000 to 40,000 cycles. Toshiba's SCiB endurance testing reached 40,000 cycles at a 10C rate and 35 degrees C. Those figures always carry test conditions, so the number that matters is the one measured at your duty cycle, depth of discharge, and ambient range. In daily-cycling service a well-designed LTO pack is generally a 15 to 20 year asset rather than a 5 to 8 year one.
Can LTO battery packs charge below freezing?
Yes, and this is the property that decides many LTO programs. Graphite-anode chemistries plate metallic lithium when charged cold, so datasheets impose a charge floor: a typical LFP cell stops accepting charge at 0 degrees C and some NMC cells at plus 10 degrees C. LTO does not plate under the same conditions, so packs can accept charge into sub-freezing ambient without a heater and without the energy and cost that heater adds.
LTO or LFP: which chemistry should I use?
Use LFP when the duty is defined by energy: long runtime, one or two cycles a day, moderate temperatures, and cost per kWh as the binding constraint. Use LTO when the duty is defined by power, charge speed, temperature, or cycle count: opportunity charging between shifts, regenerative braking capture, frequency regulation, cold-chain equipment, or any application cycling many times a day for a decade or more. LTO stores roughly a third less energy per kilogram and costs a multiple per kWh, so it only wins where those other constraints dominate.
Why do LTO battery packs cost more than LFP?
Two reasons compound. Lithium titanate cells sell at a multiple of LFP cell prices on much lower global production volume, and the lower cell voltage means more cells, more interconnects, and more BMS channels for the same pack voltage and energy. The right way to evaluate the cost is per delivered kilowatt-hour over the life of the asset rather than per kilowatt-hour of nameplate capacity, because an LTO pack rated at 20,000 cycles against an LFP pack rated at 5,000 changes the arithmetic substantially.
Can Pacific Battery Company build a custom LTO battery pack?
Yes. Pacific Battery Company is chemistry-agnostic and builds LTO packs to specification along with LFP, NMC, NCA, and sodium-ion. Send the voltage, capacity, form factor, duty cycle, and temperature range, and back comes a chemistry recommendation with the reasoning, an engineering sample timeline of 4 to 8 weeks, and a landed-cost number. If LTO is the wrong call for the application, the recommendation will say so and explain why.
Tell us what you need to build.
Send voltage, capacity, form factor, and duty cycle. Back comes a chemistry recommendation, a sample timeline, and a landed-cost number. Not sure LTO is the right call? That is the first question we answer.
Also see custom battery packs across all five chemistries and the technology behind every pack.