Geely's 1,000V architecture: what the charging breakthrough means for UK Smart #1 and Smart #5 buyers

On 25 August 2026, Geely Holding Group announced it is developing a 1,000V high-voltage architecture designed to push beyond 5.5-minute 10–80% charging times — a benchmark that would outperform the current generation of 800V systems, including those in the Smart #5 Pro+. The announcement is significant for two reasons. First, it signals where Geely's engineering investment is heading: the group is not playing catch-up on charging speed; it is trying to leapfrog it. Second, it confirms that 800V — which already underpins the Smart #5 Pro+, Premium, Pulse and BRABUS — is now Geely's mid-tier architecture, not its ceiling.

The group's existing 800V benchmark is already impressive. The Lynk & Co 10 (a Geely Group stablemate sold in China and Europe) achieved 10% to 97% charge in eight minutes in independently logged tests — outperforming BYD's current flash-charging network on equivalent benchmarks. Geely describes its 800V system as integrating batteries, e-motors, power controllers, onboard chargers, wiring and vehicle body into a single architecture, which is why charging performance at the system level has improved even before the 1,000V step.

For UK buyers of Smart vehicles — which are built by the Geely-Mercedes joint venture on Geely's SEA platform — this architecture roadmap matters because it tells you where the brand is invested. The 1,000V announcement is a 2027–2028 horizon item; it does not change what you can buy today. But it does confirm that Geely is unlikely to cede the charging-speed race.

The architecture gap between the Smart #1 and Smart #5 is not just a spec sheet difference — it is a charging-experience gap that plays out every time you plug in on a long journey.

The Smart #1 runs a 400V architecture throughout its range. Its fastest DC charging is 130kW (LFP base) or 150kW (NMC Pro+). Neither touches an 800V charger's potential. At a 150kW rapid charger — the norm on UK motorway forecourts — the Smart #1 Pro+ takes roughly 35 minutes for a 10–80% fill of its 66kWh NMC battery. That is respectable for a 400V car but not competitive with the new wave of 800V vehicles.

The Smart #5 Pro+ changes the equation. At 400kW peak DC charging on an 800V-compatible ultra-rapid charger — which currently means Osprey, Gridserve and a growing number of independent sites — it can hit 10–80% of its 100kWh battery in approximately 18 minutes. That is half the time of the Smart #1 on the same route stop. In practice, peak 400kW is rarely sustained; real-world 10–80% typically runs 22–28 minutes. But for buyers who regularly use motorways, this is a meaningful difference.

The key caveat — one Smart's marketing does not always emphasise — is that 800V performance requires an 800V-compatible charger. At a standard 50kW rapid charger (still common on UK retail forecourts), the Smart #5 Pro+ charges at the same speed as any other EV: slowly. The 800V architecture advantage is exclusively captured at ultra-rapid stations. UK buyers outside the M-road corridor or in areas with sparse ultra-rapid coverage may capture little of this advantage in daily use.

Alongside the 1,000V announcement, Geely's August 2026 brought a disclosure that UK Smart buyers should not ignore: a recall of 92,915 vehicles in China (effective 24 August 2026) covering 18,878 Galaxy M9s and 74,037 Lynk & Co 900/10 E units, all built between July and October 2025. The fault: LiDAR units on these vehicles may cause driver assistance functions to exit unexpectedly or fail to activate.

Geely has committed to replacing the LiDAR units free of charge on all recalled vehicles — a prompt, structured response. But the recall carries two signals worth parsing for UK buyers.

First, the scale (nearly 93,000 vehicles, all within a defined build period) points to a batch-manufacturing quality issue rather than a systemic design flaw. This is broadly reassuring: it suggests the root cause is contained to identifiable units, not the architecture.

Second, and more directly relevant: neither the Smart #1 nor the Smart #5 sells in China with LiDAR as standard. The Geely models recalled are upper-tier Chinese-market vehicles with LiDAR hardware. Smart UK does not sell vehicles with LiDAR fitted, so this specific recall does not touch UK Smart owners. That said, the recall does provide a window into how Geely handles quality events — and the answer here is: promptly and at its own cost. That is a better signal than silence or prevarication, and it is worth noting given how rarely UK media follows Chinese-market recall data.

For buyers who are looking at the Smart #1 rather than the #5 — perhaps drawn by the smaller footprint, the lower starting price, or the more manageable urban dimensions — the Geely technology news has less direct relevance. The Smart #1 is a 400V car built on an earlier version of the SEA platform, and its charging ceiling is set by its hardware.

What has not changed: the Smart #1 remains one of the better-safety-rated compact Chinese EVs in the UK. Its 2022 Euro NCAP result — 96% adult, 89% child, 71% VRU, 88% Safety Assist — is still among the strongest in its class and has not been undercut by a retest. The 5-star badge here is clean.

What remains the sharpest challenge for UK buyers: the 3-year vehicle warranty is the shortest in the segment at this price. Kia offers 7 years, Hyundai offers 5, MG offers 7. At £29,960–£44,960, you are paying a design and brand premium — and accepting a shorter coverage window as part of the deal. Buyers who value long-term protection should weigh this explicitly; the 8-year battery warranty is strong, but the vehicle warranty alone is conspicuously brief.

The other persistent flag: Chinese-market data shows 车质网 (China's 12365auto complaint portal) recorded a 0% manufacturer reply rate for Smart in 2026. This does not mean the UK service experience is the same — Smart UK and Smart China are managed separately. But it is a culture signal that UK buyers should be aware of if they need to escalate a warranty claim.

Geely's 1,000V announcement and the state of Smart's UK range in August 2026 point to three practical conclusions for UK buyers.

First, if charging speed on motorway runs is your primary concern, the Smart #5 Pro+ (£43,800) already delivers more than the UK's charging infrastructure can typically honour. The 400kW peak is available at a limited number of ultra-rapid hubs; the 22–28-minute real-world 10–80% is more representative. A Smart #5 Pro+ owner who routes via Gridserve or Osprey will notice a real advantage over a Smart #1 on the same journey. A Smart #5 Pro owner (400V, 150kW) will not.

Second, Geely's 1,000V horizon suggests the current Smart #5 architecture will age into the mid-tier over the next two to three model years. If you plan to keep a Smart #5 for five-plus years, the 800V architecture will not become obsolete — but it will no longer be cutting-edge. For buyers weighing purchase versus four-year PCP, this is not a deterrent; the 800V platform offers real charging advantages today. For buyers who want the most future-proof hardware, waiting for the 1,000V generation is a coherent (if distant) strategy.

Third, the Smart #1's 400V architecture is not a disqualifier — but the 193-mile base range, the 3-year vehicle warranty, and the 0% Chinese complaint-reply rate together form a profile that demands scrutiny. The Smart #1 at Pro+ (260mi, 150kW, £36,960) is a defensible purchase for buyers who prioritise design, Euro NCAP score, and urban usability. It is not the right car for buyers who want the longest warranty, the fastest charging, or the strongest brand support record.

The Geely engineering investment visible in August 2026 — 800V benchmarks, LiDAR recall handled promptly, 1,000V in development — points to a parent company that is technically capable and willing to address quality events at its own cost. That is a more positive signal than the 0% complaint-reply rate on the Smart brand itself, and worth holding both simultaneously.