Battery Pack Prices Fell to $108 Per Kilowatt-Hour in 2025 While Lithium Spot Prices More Than Doubled
Lithium carbonate spot prices rose from a June 2025 low of $7.50 to $8.60 per kilogram to $20.00 to $22.50 per kilogram by February 2026, a move of more than 150 percent at the upstream commodity level. BloombergNEF’s 2025 battery price survey reports that average pack prices fell 8 percent year over year to $108 per kilowatt-hour. Commercial battery storage contracts being signed in 2026 reflect a cost basis the upstream commodity curve no longer supports.
Cell-margin compression as the absorption mechanism. S&P Global senior principal analyst Paola Perez Peña, writing in PV Magazine USA on April 28, attributes the disconnect to cell-maker margin compression and inventory cushioning. The 2021-22 lithium spike flowed through to system prices within quarters. This spike has not. Cell makers built inventory during the deflationary stretch from late 2022 through mid-2025, when carbonate prices fell from peaks above $80 per kilogram to lows below $9. That inventory is now being drawn down at a cost basis well below current spot.
Overcapacity is the second cushion. Global cell manufacturing capacity expanded faster than deployment through 2024 and 2025, leaving cell makers with utilization headroom to absorb input shocks rather than pass them through. Commercial buyers placing orders in 2026 are quoting against that absorbed-cost pricing structure. Engineering, procurement, and construction contracts for commercial behind-the-meter projects lock in pricing months before installation, which means demand-charge-savings models built on 2026 quotes embed cell-margin-compressed economics.
CATL’s $5 billion Hong Kong placement. On April 28, Contemporary Amperex Technology Co. Limited closed a HK$39.2 billion ($5 billion) H-share sale at HK$628.20 per share, the bottom of its marketed range. The book filled within an hour. CATL’s Hong Kong shares fell roughly 7 percent on news of the dilution. It was the largest equity placement in Hong Kong year to date. Proceeds are earmarked for global capacity expansion, zero-carbon business buildout, and frontier research and development.
The placement reads as a posture statement from the leading cell maker. Capital is flowing to add capacity, not to defend cell margins. CATL accepted dilutive pricing rather than pass input costs through to system buyers. The strategic choice reinforces the absorption pattern Perez Peña identifies, and it suggests cell makers with weaker balance sheets are operating closer to the limit of what they can absorb.
Commercial procurement contracts in the disconnect window. Commercial behind-the-meter deployments are typically modeled against system pricing locked at the EPC contract level. If 2026 quotes reflect cell-margin-compressed economics, modeled internal rate of return on demand-charge-savings projects embeds a cost basis that may not persist in 2027 or 2028 if the absorption mechanism unwinds. Buyers signing now are the beneficiaries of pricing that has not flowed through to them.
The question for commercial finance committees evaluating multi-year deployment commitments is not whether prices will hold through 2026, but whether the compression that is producing today’s prices is durable. CATL’s dilutive raise suggests the largest cell maker is willing to take balance-sheet pain to fund capacity rather than to defend cell margin. Smaller cell makers, with less balance-sheet flexibility, have less room to sustain the absorption.
Comparison with the 2021 to 2022 lithium spike. During the prior spike, when carbonate moved from roughly $20 per kilogram in early 2021 to a peak above $80 per kilogram in November 2022, BNEF battery pack prices rose 7 percent year over year in 2022 to $151 per kilowatt-hour, the first annual increase in the survey’s history. The pass-through was incomplete, but it was visible. The current spike is similar in proportional terms but has produced a price decline rather than an increase.
Two factors differ. Inventory built during the 2023 to 2025 deflation is larger than what cell makers carried into 2021. And factory utilization is lower today than it was in 2022, when supply chains were still recovering from pandemic disruption. Both conditions widen the absorption capacity in this cycle relative to the last one.
Demand-side composition matters. US battery deployments through 2025 have skewed toward LFP chemistry, which is somewhat less sensitive to lithium carbonate than nickel-manganese-cobalt cells. The chemistry shift has compressed effective lithium demand per kilowatt-hour relative to the 2021 to 2022 mix. That is a smaller factor than cell-margin compression but contributes to the absorption mechanism, particularly for commercial-segment buyers, where LFP dominates installed base.
When margin compression unwinds. If lithium carbonate holds above $20 per kilogram into the second half of 2026, smaller cell makers exhaust inventory cushions, and global capacity utilization tightens, cell-margin compression becomes harder to sustain. That is the trigger window for system price firming. Commercial buyers signing 2026 contracts at current quoted prices are signing against an absorbed-cost basis. If they wait, they may sign against an actual-cost basis instead.
For commercial battery storage projects in markets where demand charges drive payback, the practical implication is that quoted EPC prices held flat to slightly down during a period when the upstream commodity has roughly tripled from its low. The buyers are not being charged for the spike. Whether they remain insulated through 2027 depends on conditions outside the buyer’s view: cell-maker balance sheets, factory utilization, inventory drawdown rates, and whether the lithium spot move sustains or reverses.
Perez Peña calls the pattern the “battery cost disconnect” and frames it as a structural feature of the current cycle, not a transitory anomaly. If that framing is correct, 2026 is a window in which commercial battery procurement is materially cheaper than the upstream curve implies, and the window has an end the buyer cannot see.
Sources
The battery cost disconnect (PV Magazine USA)
Lithium-Ion Battery Pack Prices Fall to $108 Per Kilowatt-Hour, Despite Rising Metal Prices (BloombergNEF)
CATL raises $5 billion in share sale, Sungrow files for Hong Kong IPO for the second time (PV Magazine International)
CATL Prices $5 Billion HK Share Placement at Low End of Range (Bloomberg)
CATL taps Hong Kong market for $5 billion to fund global capacity expansion (CnEVPost)