
for Vehicles Golf Carts etc. 900W 36V18A IP67 Waterproof Smart Chargers for EV 36V Onboard Lead Acid Charger
Product Introduction
We deeply analyzed how to grasp the market opportunity, and put forward the ideas of 72v lead acid battery charger factory, 48v Ebike Fast Charger, China bike battery charger innovative design and the auxiliary principles of product positioning. The company is constantly making progress, improving product quality, taking customer needs seriously, and unremittingly expanding customer groups. Our company is built on the basis of teamwork, playing the team spirit and complementing each other to achieve the maximum efficiency of the team. We have strong scientific and technological strength, have our own R&D center, and actively develop core technologies and products with independent intellectual property rights. In the process of production and operation, our company implements quality management system, improves operation management and product quality.
Overview of Onboard charger
The on-board charger of a pure electric vehicle or a plug-in hybrid vehicle is a DC charging device whose voltage is the same as that of the battery matched with the original vehicle. According to the control commands of the battery management system, the charging current and voltage parameters are dynamically adjusted to complete the electric charging. The core component of the car charging process. As a power electronic system, the on-board charger is mainly composed of a power circuit and a control circuit. The power circuit is composed of AC rectifier, transformer and power tube, and the DC/DC converter is an important part of it. The control circuit realizes serial communication with the power management, and controls the power drive circuit to output a certain voltage and current according to requirements. Usually for OEMs, the requirements of on-board chargers are low cost, small size, light weight, long life, high reliability and high safety. The current mainstream on-board chargers are generally 3.3kw and 6.6kw.
The basic principle of car charger
Generally there are the following interfaces:
1) AC input: connect the connector coming in from the AC charging socket
2) DC output: the part that the car charger outputs to the battery
3) Low-voltage control interface: low-voltage interface between the on-board charger and the BMS and external connections

Parameters of onboard charger
Item | Parameters |
Ac Input Wide Voltage Range | AC90v-264v |
AC Input Frequency Range | 40-70HZ |
With APFC Function,Power Factor | ≥0.98 |
Soft Switching Technology,Efficiency | ≥93% |
Protection Level | IP67 |
Operating Temperature | -40℃~ +60℃ |
Storage Temperature | -55℃~ +100℃ |
CAN Communication | Optional |
12v3a Auxiliary Power Supply | Optional |
LED Light Indicator for Charging Process | Standard |
Noise | ≤45dB |
Overall Size | 294x210x111(mm) |
Net Weight | 5.9kg |
Specifications of Onboard charger
Specifications&models | Input Voltage Range | Rated Output Voltage | Max Output Voltage | Max Output Current |
SMHC3-4842A | AC90~264V | 48V | 66V | 42A |
SMHC3-6040A | AC90~264V | 60V | 82.5V | 40A |
SMHC3-7240A | AC90~264V | 72V | 99V | 40A |
SMHC3-8440A | AC90~264V | 84V | 116V | 40A |
SMHC3-9632A | AC90~264V | 96V | 132V | 32A |
SMHC3-12025A | AC90~264V | 120V | 165V | 25A |
SMHC3-14423A | AC180~264V | 144V | 198V | 23A |
SMHC3-31210A | AC90~264V | 312V | 440V | 10A |
Application of Onboard charger
As a power electronic system, the on-board charger is mainly composed of a power circuit and a control circuit. For the power circuit, the DC-DC converter composed of the transformer and the power tube is an important part; for the control circuit, its core is the controller, which is used to realize CAN communication with the BMS, collect and analyze the state of the battery. Judgment, and then adjust the charging parameters of the charger and control the power circuit to charge the lithium battery pack according to the three-stage charging curve.

Our Service and Advantages
1. Good knowledge on different market can meet special requirements.
2. Real manufacturer with our own factory located in Dezhou,Shandong China
3. Strong professional technical team ensure to produce the top quality products.
4. Special cost control system ensure to provide the most favorable price.
5. Rich experience on outdoor equipment.

More models

Tel: +86-18581533864
address:No.7 Geruide Road, Decheng District, Dezhou City, Shandong Province, China
whatsapp: 86 18581533864
As one of the leading product series of our company, for Vehicles Golf Carts etc. 900W 36V18A IP67 Waterproof Smart Chargers for EV 36V Onboard Lead Acid Charger has become more perfect in function through continuous innovation and development, and has formed a scale and series. We will make technology our forerunner and combine good resources and develop to multiple directions. Enterprise cohesion is the basic symbol of enterprise behavior. The size of cohesion has an important impact on the efficiency, interests, long-term development and the growth and development of employees.
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