Toyota
Toyota i-FORCE MAX hybrid pack (1.87 kWh NiMH)
Nickel-metal hydride (NiMH) cells · 1.87 kWh · used in 5 model variants.
Pack reference
Pack overview
Known issues
How this pack ages (industry context)
Industry fleet aggregates: 2.3% average annual capacity loss across 22,700 EVs / 21 models (Geotab, 2026), and 95% range retention at 5 years on average across 30,000+ vehicles (Recurrent, 2026).
OEM warranty floor on this pack: 10 yr / 150k mi.
Public per-pack degradation curves are not available for most models. Individual results vary materially with climate, charging behavior, and DC fast-charge frequency.
Vehicles using this pack
Frequently Asked Questions
What chemistry is the Toyota i-FORCE MAX hybrid pack (1.87 kWh NiMH)?
The Toyota i-FORCE MAX hybrid pack (1.87 kWh NiMH) uses Nickel-metal hydride (NiMH) chemistry. Toyota has not named a cell supplier for this pack. Cell format has not been disclosed. Pack architecture: 288 volts, 240 cells in 40 modules (Tundra and Sequoia); under the rear seats in the Tundra.
What is the warranty on this pack?
10 years or 150,000 miles. Specific terms vary by year and trim; check the manufacturer's warranty booklet for the exact vehicle.
How much does this pack degrade over time?
Industry-wide fleet aggregates show roughly 2.3% average annual capacity loss across 22,700 EVs (Geotab, 2026), with about 95% range retention at five years on average across Recurrent's 30,000+ vehicle fleet (2026). Public per-pack degradation curves are not available for most models. The Toyota i-FORCE MAX hybrid pack (1.87 kWh NiMH) battery warranty runs 10 years / 150,000 miles, which is the OEM-guaranteed minimum within that period. Individual results vary with climate, charging habits, and DC fast-charging frequency.
Which vehicles use the Toyota i-FORCE MAX hybrid pack (1.87 kWh NiMH)?
Toyota Tundra 2022-2025 (i-FORCE MAX hybrid); Toyota Sequoia 2023-2025 (All trims (hybrid only)); Toyota Tacoma 2024-2026 (i-FORCE MAX hybrid); Toyota Land Cruiser 2024-2025 (All trims (hybrid only)); Toyota 4Runner 2025-2026 (i-FORCE MAX hybrid).