48V E-Bike 58.8V 4A Battery Charger
14S packs get sold as 48V by some suppliers and 52V by others; both charge to 58.8V, and that is what this unit delivers at 4A. Voltage display, active PFC,...
| Input Voltage | 100-240V AC |
|---|---|
| Output | 58.8V 4A |
| Efficiency | >88% |
| Protection | OVP/OCP/SCP/OTP |
A 235.2W 58.8V charger for 14S lithium packs — 51.8V nominal, 58.8V full charge. Many suppliers label these packs 48V, others 52V; it is the same 14S pack, so this is also the 52V e-bike battery charger for those listings. Voltage display, active PFC, built-in fan, GX16-3P output. Built in our own 3,000 m² factory in Shenzhen since 2011.
Key specifications
Model / battery · YZ270 · 48V/52V (14S) lithium-ion pack, 51.8V nominal
Output · 58.8 V DC / 4 A (235.2 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%
Display · Voltage display on the case — shows the pack voltage during charge
Power factor · Active PFC
Protection · OVP · OCP · SCP · OTP · overload | automatic cut-off when the pack is full | red LED = charging, green = full
Cooling / enclosure · Built-in fan · fireproof ABS + PC housing · Class II (double insulated) · IP20 (indoor, not water-resistant)
Output connector · GX16-3P (12 mm) — 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
Check two things before you order: this is the 14S build — 58.8V is
the full-charge voltage of a 14S lithium pack (51.8V nominal). A 13S 48V pack charges
at 54.6V, and a 48V lead-acid pack needs a different profile again — this unit is
not for lead-acid. Second, the connector: standard here is GX16-3P (12 mm), so
compare it against your old charger's plug.
Full technical data sheet — complete specification, certification references,
all connector and plug options, the 48V chemistry matrix and ordering terms. 2 pages, PDF.
Connector, plug and custom build options
Output connector · GX16-3P (12 mm) standard; also 3-pin XLR, DC 5.5 × 2.1 mm, DC 5.5 × 2.5 mm, GX12, XT30 / XT60 / XT90, Anderson-style, alligator clips — or a connector to your drawing
Pinout · Built to your equipment's wiring — tell us the pin assignment your pack expects and we will produce to that drawing
Input plug · US · EU · UK · AU
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
In CC mode the charger pushes a steady 4A into the pack until it reaches 58.8V, then switches to CV
mode and holds that voltage while the current tapers. Charging stops when the pack is full, so the
unit is safe to leave connected overnight — which is what a 14S pack in daily use actually needs.
Active cooling
A built-in fan moves air across the board and the radiating fins around it, so heat leaves
through the shell by design. Some warmth on the case under a 4A load is normal.
FR-4 board
The PCB is FR-4: more solid welding, higher reliability, more stable under thermal cycling
than the cheap board material used in low-cost chargers.
Voltage display
The display shows the pack voltage as it climbs, so the user can see charge state instead of
guessing from a light.
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.
Six protection layers
OVP, OCP, SCP, OTP, overload protection and overcharge cut-off. Charging stops on a fault and
resumes automatically once it clears.
1-year warranty. We build it, so we can stand behind it.
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 packing, 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. YZPOWER has designed, assembled and tested battery chargers in our own 3,000 m² factory in Shenzhen since 2011 — SMT lines, assembly zones, aging chambers and quality control all under one roof. OEM and ODM builds are welcome.
What battery does this charger suit?
A 14S lithium-ion pack — 51.8V nominal, 58.8V at full charge. These packs are sold as 48V or 52V packs depending on the supplier, so go by the series count rather than the label: if your pack has 14 cells in series, its full-charge voltage is 58.8V and this is the charger. If you are not sure, tell us your pack's nominal voltage and full-charge voltage and we will confirm.
Is this the same thing as a 52V charger?
Yes. A 14S lithium pack is sold as either a 48V or a 52V pack depending on the supplier — 51.8V nominal, 58.8V at full charge — so this is also the charger you want when you search for a 52V charger or a 52V e-bike charger. Check the series count (14S) or the full-charge voltage on your old charger: if it says 58.8V, this is the one.
Will the connector fit my e-bike or scooter?
The standard output on this build is GX16-3P (12 mm). If your old charger uses a different plug — 3-pin XLR, DC 5.5 × 2.1 mm, XT60 and so on — we build the same charger with that connector, so send us a photo of the old plug or your pack's socket and we will match it. Connector mismatch is the single most common reason a replacement charger gets returned.
Can I use it on a 48V (13S) pack, a 48V lead-acid battery or a 48V LiFePO4 pack?
Not with this build. 58.8V is the full-charge voltage of a 14S pack; a 13S 48V lithium pack charges at 54.6V, a 48V LiFePO4 pack (16S) at 58.4V, and 48V lead-acid needs a different charging profile entirely. This unit is not for lead-acid. We build all of those versions on the same platform — same housing, fan, PFC and protections, different output voltage — so 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.
Does it stop charging when the battery is full?
Yes. When the pack reaches 58.8V the charger tapers the current, stops charging and holds the pack rather than continuing to push current into it, which is what protects a lithium pack from overcharging. Over-voltage, over-current, short-circuit, over-temperature and overload protections are all built in, and charging resumes automatically once a fault clears.
Related models
Other chargers built for the same battery system, from the same factory: