GM’s original 400-mile figure was an estimate of the maximum range its Ultium platform could enable—not a tested range for every GM electric car. GM later raised that estimated ceiling to 450 miles. A separate, newer battery program uses lithium manganese-rich (LMR) prismatic cells and targets more than 400 miles in a future electric truck; that vehicle and its range remain plans, not production results.
What GM announced with Ultium in 2020
In March 2020, General Motors presented Ultium as a modular battery system and third-generation global electric-vehicle platform. Its large-format pouch cells could be stacked vertically or horizontally to suit different vehicle layouts. GM announced battery-energy options from 50 to 200 kWh and said Ultium vehicles could achieve an estimated range of up to 400 miles or more on a full charge. The range was a potential platform maximum, not a figure for every planned model. GM’s March 2020 announcement
The platform was designed to accommodate front-wheel drive, rear-wheel drive, all-wheel drive and performance all-wheel drive. GM described a range of configurations rather than promising that every vehicle would offer every battery size, drivetrain or charging specification.
Charging plans announced for the platform
GM said most Ultium vehicles would use 400-volt battery packs with DC fast-charging capability of up to 200 kW. Its truck platform was slated for 800-volt packs and charging capability of up to 350 kW. GM said the vehicles were designed for Level 2 and DC fast charging. These were platform plans announced in 2020, not specifications that apply to every Ultium vehicle.
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Why GM later cited 450 miles
In November 2020, GM said engineering advances had increased Ultium’s previously stated estimated maximum range from 400 to 450 miles. Both figures describe GM’s estimated upper end for Ultium-based vehicles; neither means that all GM EVs have that range or that a vehicle achieved it in an independent road test. GM’s November 2020 update
How the newer LMR battery differs
Ultium’s 2020 announcement described a flexible platform using large pouch cells. The later lithium manganese-rich program is a battery-cell development for future GM electric trucks and full-size SUVs, using a prismatic format. It is not simply the same 2020 technology under a new name.
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In May 2025, GM and LG Energy Solution announced plans to commercialize LMR prismatic cells. GM said the cells have 33% higher energy density than the best-performing lithium iron phosphate (LFP)-based cells at comparable cost. The company said the higher manganese content could reduce reliance on more expensive cobalt while providing greater capacity and energy density. These are GM’s comparisons; the announcement does not establish independent validation of the figures.
Range target and production schedule
GM said it was targeting more than 400 miles of range for a future electric truck with LMR cells, alongside significant battery-pack cost savings compared with its then-current high-nickel pack. GM and LG Energy Solution projected pre-production in late 2027 and U.S. commercial production by 2028. These are targets, not confirmation of a vehicle’s final specifications or its on-sale date. GM’s May 2025 LMR announcement
Rank #3
- ★【Grade A EVE 3.2V 100Ah Cell】These 3.2V 100Ah Battery cells are produced by EVE. Rated Capacity:100Ah, maximum continuous discharge current: 100A/1C, operating voltage range 2.5V~3.65V. Each weight: 4.36lb / 1.98kg. Per size: 5.11x7.91x1.41inch / 130x201x36mm.
- ★【A-grade Cells and consistency】All the cells are grade A, benefit from advanced equipment and strict quality testing standards.All batteries are equipped with a multi protection safety system and assure protection of safety and battery use.No leakage.We balance all cells in order to ensure that the internal resistance, voltage, and capacity of the cell are in perfect agreement with each other.
- ★【Easy to assemble】All battery cells are equipped with a multi protection safety system and assure protection of safety and battery use. No leakage. These LiFePO4 battery cells are easy to assemble and includes the necessary LiFePO4 battery, screws and accessories.LiFePO4 BMS is not included.
- ★【Widely applications】Customers can make the battery packs they need. Lithium battery pack for Trolling Motor, Boat, RV, Solar, Marine, Home Energy Storage, UPS power supply, replacing lead-acid batteries, etc.
- ★【What You Get】4PCS*3.2V 100Ah LiFePO4 battery cells, 4PCS*Bus bars, 8PCS*M6 Nuts, 1PCS*English manual, one year warranty,10+ years lifespan and friendly customer service.
Where LMR production is planned
On September 29, 2026, GM said Ultium Cells planned to produce LMR prismatic cells at its Spring Hill, Tennessee facility. Construction and upgrades were expected to begin later in 2026 and finish in 2028. GM projected 500 new jobs in addition to the facility’s then-current workforce of 1,200. Those workforce and timing figures are projections; the announcement describes a planned expansion, not completed LMR production. GM’s September 2026 Spring Hill announcement
What the numbers do—and do not—tell drivers
| Figure | What it refers to | How to read it |
|---|---|---|
| 50–200 kWh | Ultium battery-energy options announced by GM in 2020 | Platform options, not a single pack size shared by all vehicles. |
| Up to 400 miles or more | GM’s 2020 estimated potential full-charge range for Ultium vehicles | An early platform estimate, not a universal or independently tested model result. |
| Up to 450 miles | GM’s revised estimated maximum for Ultium-based vehicles in November 2020 | A later company estimate, not typical range for every GM EV. |
| 33% higher energy density | GM’s 2025 comparison of its LMR cells with the best-performing LFP-based cells at comparable cost | A company comparison; independent validation is not established in the cited announcement. |
| More than 400 miles | GM’s target for a future LMR-equipped electric truck, announced in 2025 | A future target, not a measured range or confirmed production-vehicle specification. |
For a driver choosing a vehicle, the relevant range is the estimate for that specific model and configuration—not the maximum a platform might support. Range also depends on the vehicle and how it is driven and charged. A home Level 2 charger is one charging option GM said Ultium vehicles were designed to support; check the chosen vehicle’s compatibility and the electrical and installation requirements for your home before buying a charger.
Rank #4
- 【EVE Grade A 3.2V 314Ah Battery Cell】 Manufactured by EVE's automated production lines to ensure cell consistency. Nominal capacity: 314Ah (actual measured capacity: 330Ah). Individual cell energy: 1004.8Wh, meeting high energy storage demands. EVE Grade A prismatic lithium iron phosphate cells deliver high energy density and extended cycle life.
- 【Extended Lifespan】Our LiFePO4 cell features a 5000+ cycle lifespan (at 25℃, 0.5C charge/discharge) —that’s 10+ years of reliable use (based on 1 cycle per day). Compared to lead-acid batteries (typically 300-500 cycles), it saves you time and money on replacements, while its low self-discharge rate (<3% per month) means it holds a charge for months without use.
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What remains unconfirmed
GM’s announcements establish what the company planned and claimed, but they do not independently confirm future LMR-cell performance, cost savings, production timing or a truck’s eventual range. The cited materials also do not provide a full independent, apples-to-apples comparison of LMR, LFP and high-nickel batteries across cell format, chemistry, energy density, cost, vehicle use and production readiness. No specific sale date for an LMR-equipped vehicle is established.
Quick Recap
Best Value
- EVE 3.2V 314Ah with M6 Double-Threaded Studs: EVE 3.2V 314Ah LiFePO4 battery cell(Lithium Iron Phosphate). Each weight: 12.35lb / 5.6kg. Per size: 6.85x8.14x2.83inch / 174x207x72mm.
- SPECIFICATION: Capacity:314Ah; Max.Continuous discharge current Rate:1C. Max.Continuous charging current: 1C. Internal resistance <0.2mΩ. Nominal voltage: 3.2V. Working voltage range:2.5V~3.65V.Charging temperature range: 32 ° F~131 ° F/0 ° C~55 ° C. Discharge temperature range: - 4 ℉~140 ℉/- 20 ℃~60 ℃.
- 10 YEARS LIFE/5000+ CYCLES:All batteries are equipped with a multi protection safety system.Battery packs require a LiFePO4 BMS. these cells do not contain a LiFePO4 BMS. before using these cells, be sure to connect a suitable BMS before charging and discharging.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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