Official Technical Compatibility Utility • 50 Verified Models

LIFTY E-Bike & E-Scooter Charger Finder

Verified voltage cut-offs, exact connector specifications, pinout polarities, and maximum safe charging currents for 25 e-scooters and 25 e-bikes. Linked directly to genuine stock and workshop replacement chargers.

Critical Charger Safety Notice: Never Select on Voltage Alone

Matching charger output voltage (e.g. 54.6V) is only step one. You must verify physical connector type, inner/outer barrel diameter, pinout polarity (+/-), and battery BMS charge current limits. Plugging in an inverted-polarity charger or exceeding BMS current limits can instantly blow charging port fuses, damage BMS MOSFETs, or trigger dangerous thermal runaway.

Step 1 — Vehicle Specification Lookup

Find Your Verified Charger Specification

Choose your category below, select brand and model, or search directly by model name.

Step 2 — Technical Tool

Charge Time & Current Calculator

Estimate full charging duration and check if your charger amperage is safe for your battery capacity.

Ah
Typical e-bikes/scooters: 7.8Ah – 20.8Ah. Long-range: 25Ah – 60Ah.
A
Standard chargers: 1.5A – 2A. Fast chargers: 3A – 5A.
Estimated Full Charge (0-100%) 8.6 hrs Includes CC/CV saturation cycle
Charging C-Rate 0.13 C Optimal Battery Health

A charge rate of 0.13C is safe and maximizes battery cell cycle longevity. Minimal heat generation during charge.

Common Charging Connectors & Wiring Standards

Before purchasing or plugging in any replacement charger, visually inspect your charging port against these factory configurations.

Most Common E-Scooter

GX16 3-Pin Aviation Plug

Round 16mm threaded metal plug with locking collar. Standard on KuKirin, Dualtron, Teverun, and NAMI.

Standard Factory Pinout:
  • Pin 1: Positive (+DC)
  • Pin 2: Negative / Ground (-DC)
  • Pin 3: Not Connected (NC)
Warning: Always check pin numbering embossed inside the plug face. Reversed polarity destroys BMS charge circuits.
Standard E-Bike

DC 5.5 × 2.1mm / 2.5mm Barrel

Cylindrical barrel plug common on ENGWE, Fiido, and Rad Power Bikes battery cradles.

Standard Factory Pinout:
  • Center Pin: Positive (+DC)
  • Outer Barrel: Negative / Ground (-DC)
  • Diameter: 5.5mm Outer / 2.1mm or 2.5mm Inner
Warning: A 5.5×2.5mm plug in a 5.5×2.1mm jack makes loose contact, causing arcing and socket melting.
Xiaomi Specific

RCA 8.0mm Coaxial Plug

Customized RCA-style coaxial connector engineered for Xiaomi M365, Pro, Pro 2, and 1S.

Standard Factory Pinout:
  • Center Pin: Positive (+DC 42.0V)
  • Outer Ring: Negative / Ground (-DC)
  • Outer Diameter: 8.0mm precision tip
Warning: Audio RCA cables have different tolerances; only use CE-certified e-mobility RCA chargers.
Bosch Proprietary

Bosch Smart System Oval Plug

Keyed oval 3-pin connector used on CUBE Kathmandu, Reaction, Stereo, Trek, and Gazelle pedelecs.

Standard Factory Pinout:
  • Upper/Lower Pins: High-current DC power
  • Center Data Pin: CAN-bus digital handshake
  • Compatibility: Smart System (BES3) ONLY
Warning: Incompatible with older Bosch eBike System 2 (BES2) round plugs. Requires genuine Bosch charger.

Verified Voltage & Battery System Directory

Complete factual specifications organized by nominal lithium-ion battery architecture across e-bikes and e-scooters.

36V Nominal Systems (10S Li-ion)

Full Charge Cut-off: 42.0V DC

Urban commuter scooters and European pedelecs (CUBE, Gazelle, Specialized, Giant, Fiido).

  • Required Charger: 42.0V DC (1.7A to 4.0A)
  • Standard Connectors: Bosch Smart System Oval, DC 5.5×2.1mm, RCA 8.0mm Xiaomi, Giant 6-Pin.
  • E-Scooters: Xiaomi M365/Pro/1S, Ninebot Max G30/G2, Ninebot F2 Pro, Ninebot ES2/ES4.
  • E-Bikes: CUBE Kathmandu/Reaction/Touring, ENGWE P26, Fiido D4s/D2s/X, Specialized Vado, Giant Explore E+.
View Xiaomi 42V RCA Charger →
48V Nominal Systems (13S Li-ion)

Full Charge Cut-off: 54.6V DC

High-torque pedelecs, cargo e-bikes, and commuter scooters (ENGWE, Fiido, Rad Power, KuKirin).

  • Required Charger: 54.6V DC (2.0A to 4.0A)
  • Standard Connectors: DC 5.5×2.1mm Barrel Plug, GX16 3-Pin Aviation Plug.
  • E-Scooters: KuKirin G2 Max, KuKirin G2 Pro, Kugoo M4 Pro, Xiaomi 4 Ultra.
  • E-Bikes: ENGWE Engine Pro, ENGWE M20, ENGWE EP-2 Pro, Fiido T1 Pro, Fiido M1 Pro, RadRunner, RadWagon.
View 54.6V 2A DC Charger →
52V Nominal Systems (14S Li-ion)

Full Charge Cut-off: 58.8V DC

Performance dual-motor scooters and long-range adventure machines (KuKirin, Teverun, Dualtron).

  • Required Charger: 58.8V DC (2.0A to 3.0A)
  • Standard Connectors: GX16 3-Pin Aviation Plug (Pin 1: +, Pin 2: Ground).
  • E-Scooters: KuKirin G2 Master, KuKirin G3 Pro, Teverun Fighter Mini Pro, Dualtron Mini, Ninebot GT1/GT2.
  • E-Bikes: High-torque 52V conversions and upgraded ENGWE Engine Pro 52V packs.
View 58.8V 3A GX16 Charger →
60V Nominal Systems (16S Li-ion)

Full Charge Cut-off: 67.2V DC

High-speed dual-motor performance scooters with rapid acceleration and steep hill climbing.

  • Required Charger: 67.2V DC (2.0A to 5.0A fast charge)
  • Standard Connectors: GX16 3-Pin (Pin 1: +, Pin 2: Ground) with dual charge port support.
  • E-Scooters: Dualtron Victor, Dualtron Spider 2, Teverun Blade GT II, Teverun Fighter 11, KuKirin G4.
View 67.2V 5A Fast Charger →
72V Nominal Systems (20S Li-ion)

Full Charge Cut-off: 84.0V DC

Hyper-performance scooters with extreme power and dual high-speed controllers.

  • Required Charger: 84.0V DC (2.0A to 5.0A)
  • Standard Connectors: GX16 3-Pin or GX16 4-Pin heavy-duty connector.
  • E-Scooters: Dualtron Thunder 2/3, Dualtron Storm, Teverun Fighter Supreme, NAMI Burn-e 2.
View 84V Performance Chargers →

Frequently Asked Questions About E-Bike & Scooter Chargers

Essential guidance on voltages, connector mismatches, and safe charging practices.

Why is a 48V battery charged with a 54.6V charger?

"48V" refers to the nominal voltage of a lithium-ion battery pack consisting of 13 cells connected in series (13S architecture). Each cell has a nominal voltage of 3.7V (13 × 3.7V = 48.1V). However, a fully charged lithium-ion cell reaches 4.2V. Therefore, to charge the pack to 100%, the charger must supply 13 × 4.2V = 54.6V DC. The same logic applies to 36V packs (10S = 42.0V), 52V packs (14S = 58.8V), 60V packs (16S = 67.2V), and 72V packs (20S = 84.0V).

Can I use a higher amperage (fast) charger on my vehicle?

Only if your vehicle's Battery Management System (BMS) and charge port wiring are rated for it. While high-capacity batteries (e.g. 30Ah+) can safely absorb 4A to 5A charge currents, smaller commuter batteries (e.g. 7.8Ah to 13Ah) may overheat. Furthermore, standard thin-gauge charge wiring and 5A internal fuses can melt or blow if subjected to high-current fast chargers. Always verify with our workshop specialists before upgrading charger current.

What happens if a charger has reverse pin polarity?

Plugging in a reverse-polarity charger creates an instant dead short between the battery pack and the charger circuitry. This typically causes a loud pop, sparks, vaporized connector pins, a blown charging port fuse, or destroyed charge MOSFETs on the BMS. Never assume two GX16 or DC barrel plugs share the same pinout without verifying with a digital multimeter first.

Can I use a Bosch Smart System charger on an older Bosch e-bike?

No. Bosch Smart System (BES3) components use a proprietary oval keyed charging socket with an encrypted digital CAN-bus handshake. Older Bosch eBike System 2 (BES2) batteries use a round charging plug. The two systems are physically and electronically incompatible.

Lifty Labs Diagnostics • Dublin 1

Unsure of your battery health or port wiring?

Our workshop at 157 Capel Street, Dublin 1 (D01 F5P1) provides multi-point voltage checks, charge port pinout verification, socket replacements, and authentic CE-certified replacement chargers.

Battery Diagnostics Ireland → Charging Port Repair Email a Specialist