Charging cost

How much does it cost to charge a BYD Denza D9 Elite in Singapore?

About $17.38 per 100 km at the median AC rate of $0.69/kWh — roughly $235 a month at 1,350 km, the distance the average Singapore car actually covers. That is about 21% less than a comparable petrol car. Charge at the island's cheapest public charger and it drops to $8.45 per 100 km.

Price in Singapore: $258,324 with COE →

The numbers behind that

Official consumption225 Wh/km
Motor power230 kW
Battery103.4 kWh LFP
Cost per 100 km (AC)$17.38
Cost per 100 km (DC)$17.81

Monthly cost by distance driven

Per month Cheapest AC Typical AC Typical DC Petrol
500 km $42 $87 $89 $110
1,000 km $84 $174 $178 $219
1,500 km $127 $261 $267 $329
2,000 km $169 $348 $356 $438

One charge, 20–100%

That puts 82.7 kWh into the battery. You are billed for 91.9 kWh, because 9.2 kWh is lost to conversion and thermal management on the way in. On a 7.4 kW AC charger that costs $63.88 and takes about 11 h 11 m. On a 120 kW DC charger: $65.49, roughly 1 h 9 m.

This car uses an LFP (lithium iron phosphate) pack, so charging to 100% regularly is fine — manufacturers recommend it, because a full charge is how the battery management system rebalances cells and keeps the range readout accurate.

Work it out for your own mileage

Consumption figures come from LTA's own homologation data, and the rates are the live medians across Singapore's public charging network. Charging losses are included — you pay for what crosses the charger's meter, not what reaches the battery.

km
Where you charge

$235 a month · $17.38 per 100 km · 338 kWh billed

About $61 a month less than an equivalent petrol car (6.5 L/100 km at $3.37/L).

Assumes 10% charging losses on AC and 5% on DC. Distance starts at 1,350 km a month — a 2025 Singapore car averaged 16,200 km a year, per LTA's mileage survey. Petrol price as of 2026-09-05; your actual cost varies with driving style, aircon use and battery condition.

What this car costs to buy

From LTA's Car Cost Update, the same source as the consumption figure. Prices are per registered variant and move with COE.

Variant OMV COE Total with COE Retail
Denza D9 Elite $58,000 $129,910 $258,324 $373,888

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