REPT BATTERO Energy Co Ltd (0666) fair value: what the stock is really worth
As of Sep 29, 2026: fair value of REPT BATTERO Energy Co Ltd HK$5.29, price HK$8.91, upside -40.6%, quality 47 out of 100. Calculated from audited financials with 26 valuation models and 37 quality factors, updated daily.
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Price vs Fair Value
White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Sep 28, 2026.
How to read this chart
33‑month range HK$8.59 – HK$21.80 · fair‑value band HK$2.93 – HK$9.45 · the HK$8.91 price screens above the HK$5.29 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). 1 fiscal year is left out: there the valuation rested on only a fraction of the usual models. Dashed = 300-day average. As of Sep 28, 2026.
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REPT BATTERO Energy Co., Ltd. engages in the design, research and development, production, and sale of electric vehicle and energy storage system lithium-ion batteries in China and internationally.
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REPT BATTERO Energy Co., Ltd. engages in the design, research and development, production, and sale of electric vehicle and energy storage system lithium-ion batteries in China and internationally. The company offers battery cell products, such as utility and C&I ESS series, residential ESS series, BEV series, PHEV and REEV series, and commercial vehicle series, as well as LFP battery cells, ternary battery cells, and EV battery modules; and battery pack products, including energy storage battery packs, passenger vehicle battery packs, and commercial vehicle battery pack and rack. It also provides ESS battery cells, modules, standardized battery boxes, battery racks, lithium-ion battery tanks for electrical energy storage, and lithium-ion battery outdoor cabinets for industrial and commercial energy storage; battery storage systems; Ultra Brain BMS, a self-developed and all-scenario battery management system; and battery recycling solutions. The company was formerly known as REPT Energy Co., Ltd. and changed its name to REPT BATTERO Energy Co., Ltd. in April 2022. REPT BATTERO Energy Co., Ltd. was incorporated in 2017 and is headquartered in Wenzhou, China.
Stock analysis
REPT BATTERO Energy Co Ltd (0666) currently trades at HK$8.91, while our model-based Fair Value estimate is HK$5.29, 40.6% below the price, so the stock looks overvalued today.
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Valuation
Bull case: the Growth Earnings group reads highest at a median of HK$14.28 per share, and 9 of the 22 models we run sit above the HK$8.91 price.
Bear case: the Economic Profit group reads lowest at HK$2.85, and 13 of the 22 models stay below the price. Evidence for this calculation is medium.
Scenario range: HK$2.93 (bear) to HK$9.45 (bull), the price of HK$8.91 sits inside it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.
Quality & growth
The Quality Score stands at 47/100 (below-average quality), in the Consumer Cyclical sector.
Mixed Growth: Revenue is growing, but margins or cash flow do not fully confirm the trend.
REPT BATTERO Energy Co Ltd reported revenue of 24.3B CNY in FY2026 versus 2.1B CNY in FY2022, a compound +85.1%/yr. Reported net income was 623M CNY in FY2026.
Key figures
Market cap HK$20.8B (≈ $2.7B) · P/E ratio 12.3 · P/S ratio 0.31 · Net margin 2.6% · Return on equity 13.0% · Return on assets (EBIT) −3.6% · Operating margin 5.5% · Revenue (TTM) 29.8B CNY.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 50 out of 100 (low confidence).
What moves the price
The share trades about 53% below its 52-week high and 4% above its 52-week low, currently below its 200-day average.
For context, the median of 10 Consumer Cyclical peers we cover trades at −32% fair-value upside, at −41%, 0666 screens richer than that median.
Fair Value models
Bear HK$2.93Fair Value HK$5.29Bull HK$9.45
Model ⓘEach model values the company its own way (discounted cash flow, earnings, assets, dividends). The fair value above is their evidence-weighted blend, not the output of a single model.Bear ⓘBear = the cautious scenario: the same model computed with conservative anchors (lower growth, margins and valuation multiples). Together with Bull it frames a plausible valuation range, not a price target.BaseBull ⓘBull = the optimistic scenario: the same model computed with favourable anchors (higher growth, margins and valuation multiples). Together with Bear it frames a plausible valuation range, not a price target. If a model's bull case is above four times its base value, the table shows that limit with a > sign (like the overall Bull above): beyond it no assumption holds.Evidence ⓘEvidence = how well-backed THIS model's estimate is for this stock (0–100): how complete and reliable its input data are, and how well the model fits the company. The final Fair Value is an evidence-weighted blend, so better-evidenced models count more. Green ≥70, amber 50–69, grey below 50.
Growth Quality ⓘGrowth is valuable only when reinvestment earns attractive returns (Aswath Damodaran): sustainable growth depends on return on capital, reinvestment and efficiency. Basis: total company revenue over the periods shown on the cards (3Y/5Y/all years), not per share, so a merger can show up as a growth jump; per-share earnings growth is in the value-creation card.65/100
Revenue is growing, but margins or cash flow do not fully confirm the trend.
Revenue growth 1 year
+45.6%
Revenue growth 3 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+17.6%
Revenue growth 5 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+95.3%
Start year 2021 (pandemic)
Revenue growth 21 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+37.7%
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Profit margin (trend) ⓘOperating margin then vs now, from reported annual statements. A falling margin after a boom year is the classic peak-earnings signal: the growth rate then leans on an inflated base.
−3.5% (2021) → 3.1% (2026)
Growth Forecast
Price in line with expectations
The price assumes less growth than the company has delivered so far and about what analysts expect.
What the price assumes ⓘThis turns our valuation around: instead of asking what the share is worth, it asks what growth the current price requires. It uses the cash the company keeps after all spending (free cash flow), the same discount rate as our models, five years of growth, then slowing evenly to 2 % a year by year ten. Compared with the analysts' sales forecasts extended to the same five years (at least three analysts, for context only, it does not enter the Fair Value): within 3 percentage points counts as "in line" (amber), below that little optimism (green), above that a lot of optimism (red).
+52.4%
Yearly growth needed for the next five years to justify today's price.
What forecasts expect ⓘAnalysts publish sales forecasts for the next two fiscal years. For the years after that, growth slows evenly to 2 % a year by year ten (2 % is the long-run rate our models use). Projected years are marked as such.
+50.1%
Yearly sales growth analysts expect, extended to five years.
After inflation (figures in CNY, China: IMF forecast 1.7% a year to 2030, 1.4% from 2016 to 2025) that is about +49.8% a year for the price and +47.6% for the forecasts.
Compare REPT BATTERO Energy Co Ltd with another stock
Price, fair value, quality and upside side by side.
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Peer GroupⓘHow this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.Auto Parts · 681 stocks
Beats the industry median on 7/13 measures
A mixed picture versus its industry peers.
Valuation
Quality Score47 · Below median
Fair Value upside−40.6% · Below median
Profitability
Return on equity (TTM)13.0% · Top 25%
Return on assets2.1% · Below median
Net margin (TTM)4.7% · Above median
Operating margin (TTM)5.5% · Below median
Growth and dividend
Revenue growth57.2% · Top 25%
Balance sheet
Debt / equity0.53× · Highest 25%
Valuation Multiplesvs Auto Parts median · lower = cheaper
P/E (TTM)12.3× · Cheapest 25%
P/B1.51× · Cheaper than median
P/S (TTM)0.60× · Cheaper than median
P/FCF217.2× · Priciest 25%
EV/EBITDA6.1× · Cheaper than median
Strength profile in five axes (Snowflake)
This stockSector peers
VALUE (fair-value potential)0· sector 26
FUTURE (revenue growth)100· sector 24
PAST (return on equity)52· sector 28
HEALTH (low debt)73· sector 95
DIVIDEND (yield)0· sector 37
VALUE 0: the price sits above our fair-value range.
For bloggers, editors and developers: paste this into your site or blog (a “Custom HTML” block in WordPress), it shows the current fair value and links back here. Free, plain HTML, and welcome. Full data streams (CSV/JSON) at /developers.
Cite: Fair Value Calculator (2026). "REPT BATTERO Energy Co Ltd Fair Value". https://www.fairvalue-calculator.com/stock/0666
Frequently asked questions
Is REPT BATTERO Energy Co Ltd (0666) overvalued or undervalued?
As of Sep 28, 2026, our model estimates a fair value of HK$5.29 versus a price of HK$8.91, about −41% upside (overvalued).
What is the fair value of 0666?
Our model-based fair value for REPT BATTERO Energy Co Ltd is HK$5.29 (as of Sep 28, 2026), built from audited fundamentals. The current price: HK$8.91.
What is the quality score of 0666?
REPT BATTERO Energy Co Ltd has a Quality Score of 47/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the price target for REPT BATTERO Energy Co Ltd (0666)?
Our model-based price target is the fair value of HK$5.29 (as of Sep 28, 2026) from 22 valuation models. Cautious scenario HK$2.93, optimistic scenario HK$9.45. It is a calculation from audited fundamentals, not an analyst target.
What is the REPT BATTERO Energy Co Ltd stock forecast for 2026?
Our models put fair value at HK$5.29, about −41% upside versus a price of HK$8.91 (overvalued). Cautious scenario HK$2.93, optimistic scenario HK$9.45. The calculation is refreshed regularly with new filings.
What is the revenue of REPT BATTERO Energy Co Ltd (0666)?
REPT BATTERO Energy Co Ltd reported trailing-twelve-month revenue of about 29.8B CNY (latest available figure, as of Sep 28, 2026).
What growth is priced into REPT BATTERO Energy Co Ltd (0666)?
For today's price to be fair in a discounted-cash-flow model, REPT BATTERO Energy Co Ltd would have to grow free cash flow by +52.4 % per year for five years (discount rate 9.0 %, then slowing evenly to 2 % perpetual growth by year ten). Over the last 5 years revenue grew +95.3 % per year. As of Sep 28, 2026.
What discount rate (WACC) does the fair value of 0666 use?
Our models discount REPT BATTERO Energy Co Ltd at 9.0 %: a base by market capitalisation (mid), damped by beta 0.27, country premium for Hong Kong. The same rate applies in all 26 models.
What is a reverse DCF?
A reverse DCF turns the usual calculation around. Instead of deriving a value from assumptions, it takes today's price as given and asks: what free-cash-flow growth would a company have to deliver for exactly this price to be fair? The result is not a forecast but the expectation already priced in. For REPT BATTERO Energy Co Ltd that is +52.4 % per year a year over ten years, using the same discount rate (9.0 %) and the same formula as our fair value.
How much growth has REPT BATTERO Energy Co Ltd (0666) delivered so far?
Over the past 5 years revenue at REPT BATTERO Energy Co Ltd grew +95.3 % a year. The price currently implies +52.4 % per year free-cash-flow growth a year. Comparing the two shows how much confidence is in the price: if it demands more than has been delivered, the business has to accelerate for the maths to work.
How fast is the sector of REPT BATTERO Energy Co Ltd (0666) growing?
The median revenue growth in the sector is +6.4 % a year. That is the yardstick for the growth priced into REPT BATTERO Energy Co Ltd (+52.4 % per year a year): it shows whether the expectation is within the usual range or beyond it.
What is the free cash flow yield of REPT BATTERO Energy Co Ltd (0666)?
The free-cash-flow yield on the price is 0.46 %: that much free cash flow REPT BATTERO Energy Co Ltd produces per unit of market value. When it exceeds the discount rate of our models (9.0 %), the business already earns more than its cost of capital demands, and the price needs little additional growth.
What is the intrinsic value of REPT BATTERO Energy Co Ltd (0666)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For REPT BATTERO Energy Co Ltd it is HK$5.29 per share (as of Sep 28, 2026), against a price of HK$8.91. It is the blended result of 22 valuation models (cash flow, earnings, asset, dividend).
Is REPT BATTERO Energy Co Ltd stock overvalued or undervalued in 2026?
As of Sep 28, 2026, 0666 trades above its calculated fair value: price HK$8.91, fair value HK$5.29, a gap of about −41% (overvalued). The calculation is refreshed with each new quarterly report, so the verdict can change during the year.
Is fair value the same as the market price of 0666?
No. The price is what the market pays today (HK$8.91); the fair value is what the company's own numbers justify (HK$5.29). For REPT BATTERO Energy Co Ltd the two are HK$3.62 per share apart. That gap is exactly why we show both numbers side by side.
How much is REPT BATTERO Energy Co Ltd worth?
The market values REPT BATTERO Energy Co Ltd at about HK$20.8B (market capitalisation, as of Sep 28, 2026). Per share that is HK$8.91; our models calculate a fair value of HK$5.29 per share.
What do the bullish and bearish scenarios say about 0666?
Our models span a range for REPT BATTERO Energy Co Ltd: cautious scenario HK$2.93, base HK$5.29, optimistic HK$9.45 per share (as of Sep 28, 2026, price HK$8.91). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of 0666?
REPT BATTERO Energy Co Ltd trades at a price-to-earnings ratio of 12.3 (as of Sep 28, 2026). A P/E on its own says little: it compares the price with ONE year of profit, while our fair value of HK$5.29 is built from several models across several years. Other multiples: P/B 1.5, P/S 0.6, EV/EBITDA 6.1.
How solid is the balance sheet of REPT BATTERO Energy Co Ltd (0666)?
Balance-sheet figures for REPT BATTERO Energy Co Ltd (as of Sep 28, 2026): return on equity 13.0%, debt of 0.53 per unit of equity. They feed the Quality Score of 47/100, which measures business quality independently of the share price.
How far is 0666 from its 52-week high?
REPT BATTERO Energy Co Ltd trades at HK$8.91, about 53% below its 52-week high of HK$18.85 and 4% above the low of HK$8.59 (as of Sep 29, 2026). Distance from the high says nothing about value: that is what the fair value of HK$5.29 is for.
Which stocks are comparable to REPT BATTERO Energy Co Ltd?
From the same area (Consumer Cyclical) we also value O'Reilly Automotive, Inc, AutoZone, Inc, Hyundai Mobis Co, Fuyao Glass Industry Group, among others. Each of them has its own fair-value calculation on this site using the same models, so the comparison is like for like.
Is REPT BATTERO Energy Co Ltd stock attractive at the current price?
The data as of Sep 28, 2026: price HK$8.91, calculated fair value HK$5.29 (−41%), Quality Score 47/100, from 22 models. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
How is the fair value of 0666 calculated?
We run REPT BATTERO Energy Co Ltd through 22 models from four families: discounted cash flow, earnings models, asset and balance-sheet models, and dividend models. Every model gets the same audited fundamentals; the result is the weighted average of HK$5.29, with the spread shown as a cautious and an optimistic scenario.
Is it still worth investing in stocks now?
The global stock market currently sits 14.9 % above its aggregate fair value. REPT BATTERO Energy Co Ltd itself currently trades above fair value. An expensive market is no reason to stay out and no reason to buy everything at once: keep a broad savings plan running, buy single stocks only with money you can do without, and hold part of your money liquid while the market is high. The full picture including sectors is on is it worth investing now.
What is the share price of REPT BATTERO Energy Co Ltd (0666)?
The closing price on Sep 29, 2026 was HK$8.91. Our model-based fair value is HK$5.29, about −41% upside (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with REPT BATTERO Energy Co Ltd right now?
The model range is unusually wide (HK$2.93 to HK$9.45). The outcome hinges heavily on assumptions, so read the point estimate with caution. Solid but not exceptional quality (47/100) and above fair value, neither a clear bargain nor a standout compounder.
Key figures of REPT BATTERO Energy Co Ltd
How large is the market capitalisation of REPT BATTERO Energy Co Ltd (0666)?
The market capitalisation of REPT BATTERO Energy Co Ltd is HK$20.8B (≈ $2.7B). The stock-market value of the whole company: share price times number of shares. It is what the market asks for the entire business today.
What is the P/S ratio of REPT BATTERO Energy Co Ltd (0666)?
The price-to-sales ratio of REPT BATTERO Energy Co Ltd is 0.31 (P/E × margin). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What is the net margin of REPT BATTERO Energy Co Ltd (0666)?
The net margin of REPT BATTERO Energy Co Ltd is 2.6% (fiscal year 2026). How much of every unit of revenue ends up as profit. 10% means 10 cents of profit per dollar of sales.
What is the return on equity of REPT BATTERO Energy Co Ltd (0666)?
The return on equity (ROE) of REPT BATTERO Energy Co Ltd is 13.0% (last twelve months). Profit relative to shareholders' equity, how efficiently the company works with its owners' money.
What is the EBIT return on assets of REPT BATTERO Energy Co Ltd (0666)?
On an EBIT basis the return on assets of REPT BATTERO Energy Co Ltd is −3.6% (avg 5y). Operating profit (EBIT) relative to everything the company owns, as a multi-year average. It describes the business model rather than one good or bad year.
What is the operating margin of REPT BATTERO Energy Co Ltd (0666)?
The operating margin of REPT BATTERO Energy Co Ltd is 5.5% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at REPT BATTERO Energy Co Ltd (0666)?
Revenue at REPT BATTERO Energy Co Ltd is growing +57.2% versus a year earlier (3y avg +17.6%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How much net debt does REPT BATTERO Energy Co Ltd (0666) carry?
The net debt of REPT BATTERO Energy Co Ltd is 4.9B CNY (fiscal year 2026, ≈ 59.9 yrs of FCF). Debt minus cash on hand. The note shows how many years of free cash flow could in theory pay it off.
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