Source-led automotive research / published 2026-10-19

Sri Lanka BYD ATTO 1 and Dolphin: the battery and charger depend on the exact variant.

The short answer

For Sri Lankan buyers and owners, how do the local BYD ATTO 1 Dynamic/Premium and Dolphin Dynamic 49/70, Premium 99/150 compare in traction-battery capacity, NEDC range and charging?

The official John Keells CG Auto Sri Lanka brochures identify two ATTO 1 versions with 30.08 kWh / 300 km NEDC / 30 kW peak DC (Dynamic) versus 38.88 kWh / 380 km NEDC / 40 kW (Premium). Local BYD Dolphin Dynamic 49/70 use 44.9 kWh and 410 km NEDC, whereas Premium 99/150 use 60.48 kWh and 490 km NEDC; peak DC is listed at 60 kW for Dynamic and 80 kW for Premium. These are separate editions and laboratory-cycle claims, not guaranteed Sri Lankan driving ranges or comparable real-road test results.

Applicable to: Sri Lanka John Keells CG Auto official distributor brochure editions: ATTO 1 March 2026 brochure v5, Dolphin February 2026 brochure. The named **ATTO 1 Dynamic, ATTO 1 Premium, Dolphin Dynamic 49/70 and Dolphin Premium 99/150** alone. This is NOT European Dolphin Surf, Chinese Seagull, another ATTO 1/ATTO 3 market, BYD Dolphin UK 2023 editions or a current showroom-stock/warranty-contract guarantee. Check vehicle identification, actual installed battery and local dealer confirmation.

01 / Direct answer

Manufacturer-specified figures by configuration

These are manufacturer-referenced values for the named configurations only. Read the exact source for your engine, trim and market instead of carrying a measurement across model names or model years.

Original manufacturer-referenced figures, scoped to each named configuration. Source links open the official publication.
Vehicle configurationPublished valueContext and limitsManufacturer evidence
ATTO 1 · Standard Range Dynamic · Sri Lanka distributor 202630.08 kWh · 300 km NEDCBYD Blade Battery · 30 kW advertised peak DC · 6.6 kW AC. 45 kW / 135 N·m front-drive motor. Exact local brochure edition.View original source ↗
ATTO 1 · Extended Range Premium · Sri Lanka distributor 202638.88 kWh · 380 km NEDCBYD Blade Battery · 40 kW advertised peak DC · 6.6 kW AC. Same brochure lists 45 kW / 135 N·m front-drive motor; not Dynamic battery size.View original source ↗
ATTO 1 · shared original equipment reference185/55 R16 tyres · 3,925 mm lengthDistributor lists 2,500 mm wheelbase and five seats for the named ATTO 1 editions. These dimensions do not establish Dolphin, Seagull, Dolphin Surf or ATTO 3 fitment.View original source ↗
Dolphin · Standard Range Dynamic 49 · Sri Lanka 202644.9 kWh · 410 km NEDC · 49 kW motorBYD Blade Battery; 60 kW advertised peak DC / 7 kW AC. Torsion-beam rear axle and 195/60 R16 tyres in local brochure.View original source ↗
Dolphin · Standard Range Dynamic 70 · Sri Lanka 202644.9 kWh · 410 km NEDC · 70 kW motorSame rated battery and cycle as Dynamic 49, but distinct original 70 kW motor specification. 60 kW advertised peak DC / 7 kW AC.View original source ↗
Dolphin · Extended Range Premium 99 · Sri Lanka 202660.48 kWh · 490 km NEDC · 99 kW motor80 kW advertised peak DC / 7 kW AC, multi-link rear suspension and 205/50 R17 tyres; do not copy Dynamic's 44.9 kWh battery.View original source ↗
Dolphin · Extended Range Premium 150 · Sri Lanka 202660.48 kWh · 490 km NEDC · 150 kW motor80 kW advertised peak DC / 7 kW AC. Different motor output from Premium 99 despite identical rated pack and NEDC cycle figures.View original source ↗
Dolphin · shared local hatchback dimensions4,290 mm length · 2,700 mm wheelbaseOfficial Sri Lankan distributor's Dolphin brochure: distinct body from smaller ATTO 1. Rear axle, tyres and motor outputs vary by exact trim.View original source ↗
BYD Sri Lanka · local public battery-warranty advertisement8 years / 160,000 km · advertisedBYD Sri Lanka's official account advertises this headline battery warranty; the signed local warranty, VIN, transfer terms, service exclusions and SOH rules control actual cover.View original source ↗
BYD Europe · distinct regional battery-warranty announcement8 years / 250,000 km · EUROPE ONLYEurope's January 2026 BYD Blade Battery mileage extension expressly applies to European customers. No evidence it transfers to an ATTO 1, Dolphin or ATTO 3 sold in Sri Lanka.View original source ↗
02 / Before you use these values

Match the exact vehicle.

Check 1

Choose the **Sri Lankan distributor** configuration. BYD ATTO 1, overseas-market Seagull/Dolphin Mini and Europe's Dolphin Surf may share an underlying model family, but this article does not assert identical battery capacity, range, charge port, warranties or parts across markets.

Check 2

ATTO 1 Dynamic **30.08 kWh / 300 km NEDC** and Premium **38.88 kWh / 380 km NEDC** are different packs; published 30/40 kW DC figures are rated equipment limits, NOT promised charging speeds at every station.

Check 3

The four **Sri Lanka Dolphin** editions differ: Dynamic 49 and Dynamic 70 share **44.9 kWh / 410 km NEDC** but have 49 versus 70 kW motors; Premium 99 and 150 share **60.48 kWh / 490 km NEDC** but have 99 versus 150 kW motors. Do not use an older UK Dolphin 44.9/60.4 kWh 2023 WLTP launch sheet as the Sri Lankan 2026 product specification.

Check 4

NEDC is an older laboratory test cycle. Actual distance depends on speed, tyre inflation, temperature, traffic, passenger load, climate control, battery temperature and battery condition. Neither NEDC number is a guaranteed Colombo or highway range. WLTP, NEDC and real-world data cannot be substituted.

Check 5

Peak DC charging power is not a full session's charging rate; grid capacity, charger capability, connector, pack state of charge, pack temperature and battery-management restrictions change results. The brochures do not prove a universal 10–80% charging time across six trims.

Check 6

For warranty, **BYD Sri Lanka's own official communication advertises 8 years / 160,000 km for the battery** (https://www.linkedin.com/posts/byd-sri-lanka_bydsrilanka-bydwarranty-newenergymobility-activity-7470633405819408385-Vtfw). This is a general advertising statement, NOT a complete warranty contract: first registration, covered components, transfer rules, battery state-of-health threshold, exclusions and required service must be checked in the actual signed local vehicle warranty document.

Check 7

BYD Europe's January 2026 **8 years / 250,000 km** Blade Battery announcement (https://media.byd.com/byd-extends-warranty-of-blade-battery-to-eight-years-or-250000km/?lang=eng) **explicitly applies to Europe**. Do not claim Sri Lankan ATTO 1, Dolphin or ATTO 3 automatically gains the European mileage extension or its 70% SOH term.

Check 8

A BYD high-voltage Blade Battery is not the replaceable 12V auxiliary battery or smart-key coin cell. Do not open an HV enclosure, touch orange cables, repair a charging connector or infer an expensive HV replacement from one low range observation. Seek trained authorised technicians.

Check 9

The 2026 official Sri Lanka brochures allow BYD to revise equipment; check the exact VIN and delivered variant. No price, stock claim, repair cost, tyre pressure, battery-cell replacement quantity or import valuation is supplied by this reference.

03 / Verification and next answers

Where the numbers came from

Read the official BYD Sri Lanka distributor's March 2026 ATTO 1 and February 2026 Dolphin eight-page brochures separately, comparing actual battery, motor, NEDC, peak AC/DC and trim-specific tyre/suspension tables. Cross-checked the distributor's status and visible notices. Reviewed the BYD Sri Lanka official 8-year/160,000-km announcement and the separate Europe-only 8-year/250,000-km January 2026 BYD press statement strictly as different national policy scopes, not an assertion of final local contractual eligibility. Search-demand gate: prior user-supplied Sri Lanka Google Trends FIVE-TERM comparison had measurable Dolphin interest (average relative 6.1) but ATTO 1 was zero/rounded against dominant Wagon R. No BYD-only Google Trends CSV was retrievable in this session, so this release claims owner relevance based on market registrations (e.g. Daily FT's July 2026 report of 612 ATTO 1 and 180 Dolphin Dynamic registrations), **not newly verified BYD-only Trends search volume**. The registration figures may include dealer inventory and do not prove owner deliveries. This is an original single local-market comparison, not a copied UK Dolphin article or a programmatic variant landing-page set.

Primary evidence (4 sources)

  1. Manufacturer source 1johnkeellscgauto.com ↗

    3 exact configuration rows supported

  2. Manufacturer source 2johnkeellscgauto.com ↗

    5 exact configuration rows supported

  3. Manufacturer source 3linkedin.com ↗

    1 exact configuration row supported

  4. Manufacturer source 4media.byd.com ↗

    1 exact configuration row supported

This page is an original explanation of limited factual specifications. CarFactBook has not inferred an exact VIN, fitted replacement part, global-equivalent manual or unpublished service quantity.

Source count: 4. The original manufacturer's vehicle-specific manual and labels take priority if your exact car differs from these listed reference configurations.

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