48V Electric Scooter 54.6V 4A Battery Charger
48V (13S) e-bike and e-scooter packs charge at 54.6V / 4A through 3-pin XLR, including Kugoo Kirin-compatible models. Voltage display, active PFC, built-in f...
| Input Voltage | 100-240V AC |
|---|---|
| Output | 54.6V 4A |
| Efficiency | >88% |
| Protection | OVP/OCP/SCP/OTP |
A 218.4W 48V battery charger for 13S lithium packs — 54.6V constant-voltage charging at 4A, 3-pin XLR output, voltage display, active PFC and a built-in fan. Widely used as a 48V e-bike battery charger and e-scooter charger, including Kugoo Kirin-compatible models. CE / UKCA / RoHS, from our own 3,000 m² factory in Shenzhen.
Key specifications
Model / battery · YZ270 · 48V (13S) lithium-ion pack
Output · 54.6 V DC / 4 A (218.4 W) · CC/CV profile
Input · 100–240 V AC, 50/60 Hz rated (47–63 Hz range), 3.0 A · appliance inlet (detachable mains cord)
Efficiency · >88%
Power factor · Active PFC
Display · Voltage display on the case — shows the pack voltage during charge
Protection · OVP · OCP · SCP · OTP · over-charge cut-off | red LED = charging, green = full
Cooling / enclosure · Built-in cooling fan · flame-retardant PC housing · Class II (double insulated) · IP20 (indoor, not water-resistant)
Output connector · 3-pin XLR — other types below
Size / weight · approx. 184 × 75.8 × 55 mm · 0.6 kg
Operating / storage temperature · -20 °C to +50 °C operating · -40 °C to +80 °C storage
Certification · CE (LVD) · UKCA · RoHS 2.0 — certificate and report numbers below
MOQ / lead time / warranty · 1 unit · 10-15 working days · 1 year
Full technical data sheet — complete specification, certification references,
all connector and plug options, custom build scope, ordering terms. 2 pages, PDF.
Connector, plug and custom build options
Output connector · 3-pin XLR standard. Also DC 5.5×2.1 mm, DC 5.5×2.5 mm, GX16 / GX12, XT30 / XT60 / XT90, Anderson-style, alligator clips — or a connector to your drawing
Input plug · US · EU · UK · AU
Output voltage · 3.7–96 V (1–23 series, or more on request). Builds outside our certified band are quoted separately and may need separate approval for your market.
Label · cable length · packaging · manual · Produced to your specification
Since 201115 years building chargers
3,000 m²own factory in Shenzhen
150,000+units produced every month
55+export markets served
Why this charger lasts
54.6V is the full-charge voltage of a 13-series lithium pack (13 × 4.2V) — the standard
configuration behind anything sold as a "48V" e-bike or e-scooter battery. In CC mode the charger
pushes a steady 4A in until the pack reaches 54.6V, then holds that voltage in CV mode while the
current tapers, then stops. That taper and cut-off are what stop the pack being overcharged.
4A — half the charging time of 2A
Most 48V chargers on the market deliver 2A. Doubling the current roughly halves the time a
48V 10–30Ah pack spends on charge, which is the difference between one shift and two.
1.Active PFC
Power factor correction keeps input current in phase with the mains, so the charger draws a
clean, near-unity load instead of the spiky draw a cheap charger presents to the socket.
2. Built-in fan
At 218.4W continuous, heat is the main killer of charger lifetime. Forced-air cooling plus a
flame-retardant PC housing keeps the power stage inside its rating.
3. Voltage display
The voltmeter on the case shows the pack voltage as it climbs, so the user can see charge
state rather than guess from a light.
How 54.6V relates to 48V, 52V and 13S packs
Certifications and how we build
CE — LVD 2014/35/EU · TÜV SÜD attestation N8A 134063 0001 Rev. 00 (test report 6821025107601, 15 Sep 2025) · EN 60335-1:2012/A16:2023, EN 60335-2-29:2021/A11:2024, EN 62233:2008 · certified family YZ270xxxxyyyy — 12.0–58.8 VDC / 0.1–10.0 A, Class II, IP20. CE marking is applied under the manufacturer's EU Declaration of Conformity.
UKCA — UK LVD · Test report ATJC24122180001900SR1 · BS EN IEC 60335-1:2023/A11:2023, BS EN 60335-2-29:2021/A1:2021/A11:2024 · certified family YZ270-xxxxyyyy — 3–108 VDC, 300 W max
RoHS 2.0 · Test report CRT250623R002 · Directive 2011/65/EU as amended by 2015/863/EU · IEC 62321 series · Pass
Own SMT lines, assembly zones, aging chambers and IQC / IPQC / OQC checkpoints sit under one roof;
every unit is aged before it is packed, and your order runs through three inspections before we
photograph it and dispatch. Certificate and test-report copies are available for your technical
file on request.
Frequently asked questions
Are you a factory or a trading company?
We are a manufacturer, building chargers in Shenzhen since 2011. Our 3,000 m² facility has its own SMT lines, assembly zones, aging chambers and QC stations, with a monthly capacity of 150,000+ units. We welcome factory visits and third-party inspections.
What battery does this charger suit?
A 48V (13S) lithium-ion pack. 54.6V is the full-charge voltage of 13 series lithium cells at 4.2V each, so a 54.6V 4A charger is the correct match for a 48V lithium e-bike, e-scooter or moped battery — the same 54.6V output also charges 52V packs.
Will it fit my e-bike or scooter?
The charger is supplied with a 3-pin XLR output connector and is used on Kugoo Kirin-compatible models. If your equipment uses a different connector, send us your model or a photo of the socket — we build to your specification, including DC barrel, GX16, XT and Anderson-style connectors.
Can it charge a 48V lead-acid or LiFePO4 battery?
This 54.6V build is for 13S lithium packs. We also make the same model as a 48V lead-acid version (around 58.8V out) and a 48V LiFePO4 version (16S, 58.4V out) — one platform, different output voltage, so you get the same housing, fan, PFC and protections with the voltage your pack needs. Tell us your battery type and we will quote the right version: ordering the wrong output voltage is the most common reason a replacement charger fails.
Why 4A instead of 2A?
Current sets charging time. On the same 48V 20Ah pack, a 4A charger puts roughly twice the energy in per hour of a 2A charger, so it reaches full charge in about half the time. It is the same 54.6V output either way — only the current differs.
Related models
Other chargers built for the same battery system, from the same factory: