Waterproof Charger Series

Waterproof Charger Series


Our Waterproof Charger Series is designed mainly for customers to use it in different scenarios, whether it is for your golf cart, electric sweeper at home, electric ATV or lawn mower, etc., as long as It is your device that matches our parameter settings and can be used together. Since our chargers are waterproof and shockproof, they can be used well even in harsh environments. We can supply series of portable chargers, you can design your own electric vehicle battery charging solutions with us.


Have questions or need help finding the best charger? Contact us to answer any questions you may have about different types of battery chargers or read more about how to pick the right battery charger.


Waterproof IP65

Our charger is water-resistant and able to protect against water jets. Water projected by a nozzle (6.3 mm) against the enclosure from any direction shall have no harmful effects.

Dependable and rugged construction

The Charger is independently developed and designed by our R&D team. Fully glued inside, anti-vibration. It can also be used well in harsh environments.

Battery reverse connection protection

When the battery is reversely connected, the internal circuit of the charger will automatically disconnect the battery, and the charger will not be damaged without charging.

Short circuit protection

When the output is short-circuited, the charger automatically turns off the output. After troubleshooting, reconnect the battery to resume charging. Better protection of battery and charger life.

Energy efficiency

Chargers are designed to optimize charging time and minimize energy waste, helping to extend the life of the batteries and save money on energy costs.

AC and DC charger plugs

The US plug usually for United States, Canada, Japan, Brazil, the Philippines, Thailand and other countries.
The EU plug, usually for EU countries(European Union Countries) such as Germany, France, the Netherlands, Denmark, Austria, Sweden, etc.
The UK plug, usually for Britain, India, Pakistan, Singapore and etc.
The AU plug, usually for Australia, New Zealand, Argentina and etc.

The common DC connectors in the market include Anderson, EZ-go, DS Club Car and Yamaha Connector, etc.


Waterproof Charger for Sale

Classifications of Waterproof Chargers


Waterproof Chargers are designed to work with different voltage batteries. The most common types are 36-volt and 48-volt chargers, which correspond to the voltage of the golf cart's battery system. As a professional golf cart battery charger manufacturer in China, we can supply 12V/24V/36V/48V/60V/72V battery chargers for your choice.


The amperage rating of a charger indicates how quickly it can charge a battery. Higher amperage chargers can charge batteries more quickly, but may also be more expensive. Some common amperage ratings for Waterproof Chargers include 15 amps, 20 amps, and 25 amps.

▲Charging method

Waterproof Chargers can use different methods to charge the batteries. Some common methods include float charging, trickle charging, and pulse charging. Float charging maintains a constant voltage to keep the battery charged without overcharging it. Trickle charging uses a low current to slowly charge the battery. Pulse charging alternates between charging and resting periods to help prevent overcharging and extend the battery's lifespan.


Waterproof Chargers may also include additional features, such as LED displays to indicate charging progress, automatic shut-off when the battery is fully charged, and reverse polarity protection to prevent damage if the battery is connected incorrectly.

Charger Models for Waterproof Chargers

Single battery voltage parameter list

Battery type

Nominal voltage

Max. Charge voltage

Discharge voltage


3.7 v

4.2~4.25 v

3 v


3.2 v

3.6~3.65 v


Lead acid

2 v


1.5 v



Note: The max voltage of the Li-ion, Lifepo4, lead acid battery per cell is 4.2v/s, 3.6v/s, 2.45v/s respectively as below. Please do not hesitate to contact us if you have any other different requirements, We could support customized service for you.


Hot selling Waterproof Chargers

Model No.

Nominal Voltage




Lead acid




25.2v/ 29.4v/ 33.6v












50.4v/ 54.6v/ 58.8v

54v/ 57.6v





63v/ 67.2v/ 71.4v






79.8v/ 84v



Charging Curve for the Waterproof Chargers

Here below is the charging curve for your reference. For lead-acid batteries, we have precharge+Constant charge-+Constant voltage+float voltage. And for lithium batteries, we have it precharge+constant current+constant voltage.


Golf Cart Battery Charger Charging Curve

FAQ about Waterproof Charger

Do you also do OEM or ODM products for customers?

Yes, we could do OEM and ODM services for our customers around the world. You could forward your details demands to us via email, WhatsApp, or WeChat.


What color do you have for your battery chargers?

We have silvery color which customers ordered most, and Blue, Red, Black, or other colors can be produced as per your request as well. Please kindly provide the Pantone colors you need, then we will check and confirm for you immediately.


How do you make it to meet IP65 waterproof?

We do full glue inside the charger, and the LED’s to be glued from the inside properly. Put the rubber gasket between the edges of the side plates and the metal case. Put epoxy glue on all external open screws. The fan outside also has IP65 waterproof certificate.


Did the charger has an interlock function?

If the charger is On board charger model, it has the interlock function. When the batteries are being charged (charger is being used with AC on), the electric vehicle motor, headlight, etc. cannot be used and the electric vehicle cannot move too. It is done by using the signal from the interlock.


If your battery charger can work for both lead acid and lithium batteries at the same time?

A battery charger can work for 1 type of battery after the factory setting. If you have both lead acid and lithium batteries, we’d like to suggest taking both lead-acid chargers and lithium chargers. Please contact our expert to advise your battery type and voltage, then we will provide the suitable one for you very soon.


Why can't lead-acid batteries and lithium batteries of the same voltage use the same kind of charger, such as 57.6V lead-acid batteries and 57.6V ternary lithium batteries sharing a charger?

Specifically, when the charger charges a 57.6V lithium battery, and reaches the constant voltage stage of 57.6V and the current reaches 2A, the charger cut off automatically; When the charger charges a 57.6V lead-acid battery and reaches the constant voltage stage of 57.6V and the current reaches 5A, the charger switches to the float charge stage of 55.2V. If use the charger which designed for lithium batteries to charge lead acid batteries , this way will reduce the life of lead acid batteries due to the lack of floating charging 55.2v; If use the charger which designed for lead acid batteries to charge lithium batteries , this way will cause the lithium battery to not be fully charged due to the process of floating charging 55.2v. Therefore, we recommend that lead-acid batteries and lithium batteries be charged by their specially designed chargers respectively.


Could you explain the Precharge function?

Precharging is to protect the life of the battery. When the battery voltage is lower, the internal resistance of the battery is greater (the heat is more serious), and the current it can withstand is smaller. Precharging is to reduce the current when the battery voltage is low to reduce heat generation to protect the battery.


How many colors does the LED light(Indicator) come with? And what is the meaning of each color?

We have the LED indicator with tri colors, yellow, red and green color.

Steady Red Indicator:Charging

Steady Yellow Indicator:Almost Full

Steady Green Indicator:Full

Red Indicator Flashing:Charger failure

1. Initially just powered on - 1S period flashes

2. The battery is reversed - 0.5S cycle flashes

3. Output overcurrent -1S period flickering

4. High battery voltage - 2S period flashing

5. Low battery voltage - 3S period flashing

6. Output voltage high - 4S period flashes

7. Battery failure -5S period flashes


What is the operating & storage temperature range for this charger?

The operating temperature -20℃ ~ 50℃, storage temperature -40℃ ~ 80℃.


Can you make with universal input voltage 100 – 240Vac if required?

Yes, our chargers support 100-240VAC and 50/60Hz. No matter your market is European, South American, Asia or others, we are all supported.


Can you tell me your delivery time and if could provide DDP service?

The delivery time is related to the production time and shipping way. For sample orders, the production time is 5-7 days generally; For orders of more than 1000 pcs, the production time is around 30-45 days generally. For sample orders, we usually ship the goods by expresses like DHL, FedEx, and UPS. The shipping time is 5-7 days normally. For decent orders weighing more than 200kg, we will choose the shipping way by sea, special line, or Express according to your needs. The shipping time by sea is 20-30 days. We could provide DDP service according to the shipping way you choose. And we always consider the most economic way for our customers.


Can you tell me why lead-acid batteries need float charging?

Lead-acid batteries have self-discharge and daily load loss in the static state, resulting in a gradual decline in the storage power of the battery in the static state, and it is necessary to replenish the lost power in time to prevent the power deficit.



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