Ultrapower
Ultrapower UP-S4AC Charger 1S 2S LiPo/LiHV Battery Charger
Last 90 Days Sales: PCS
Order ships in 7~15DAYS business days.
Customers who can not place an order please contact us;
Core Overview
The UPS4AC is a four-channel intelligent charger designed for model hobbyists and professional users. Its core value lies in "one device, multiple functions, worry-free and efficient": it can be directly plugged into household AC power without an external power adapter, and can simultaneously charge four groups of batteries of different types and specifications independently. It perfectly solves the charging management problem for users who have various small lithium batteries (LiPo/LiHV) and nickel-metal hydride/nickel-cadmium batteries (NiMH/NiCd) at the same time, making it an ideal choice for a desktop charging station.
Core Technology Advantages
Worldwide AC Power Compatibility
Supports 100-240V wide voltage AC power, globally compatible, eliminating the need to purchase bulky external adapters, saving cost and space.
Four Independent Channels
Four channels can be set independently, allowing simultaneous mixed charging, greatly improving work efficiency for multi-battery users.
Extremely Wide Interface Compatibility
Comes standard with multiple mainstream balance connectors and interfaces such as SM, XH, MICRO, MX, JST, mCPX, covering almost all common small-scale aerial, car, and boat model batteries.
Usage Recommendations
- Outdoors, you can use an 11.1V (3S) or 14.8V (4S) lithium polymer battery as a DC input power source to charge your devices, achieving flexible "battery charging battery" power replenishment.
- For NiMH batteries not used for a long time, you can use this charger for slow discharge (if this function is available) or perform regular charge/discharge maintenance. After use, store the charger in a dry environment.
Product Specifications
| Item | Specifications |
|---|---|
| Input Voltage | AC 100-240V ~ 50/60Hz; DC 7.0-17.0V |
| Charging Power | Max 7W × 4 channels (Total 28W) |
| Charging Current | 0.1A - 1.0A / channel, independently settable |
| Supported Battery Types | LiPo, LiHV, NiMH, NiCd |
| Supported Cell Count | LiPo/LiHV: 1-2S; NiMH/NiCd: 2-6 cells |
| Display Interface | Blue LCD Display + LED Indicator |
| Compatible Interfaces | SM / XH / MICRO / MX / JST / mCPX |
| Dimensions | 125mm × 78mm × 42mm |
| Product Net Weight | Approx. 220g |
Frequently Asked Questions (FAQ)
Q1: Can the four channels charge four completely different batteries simultaneously?
A: Yes. You can simultaneously connect a 1S LiPo, a 2S LiHV, a 4-cell NiMH, and a 6-cell NiCd battery, and set an appropriate current for each channel independently for charging.
Q2: How long does it take to charge a 2S 3000mAh LiPo battery with the current set to 1.0A?
A: Under ideal conditions, charging time ≈ (battery capacity × 1.2) / charging current. That is (3000mAh × 1.2) / 1000mA ≈ 3.6 hours. Recommendation: For daily use, choose a current of 0.5-0.8A, which is more friendly to battery life.
Q3: What to do outdoors without AC power?
A: You can use any DC power source with an output voltage between 7-17V, such as a car cigarette lighter adapter (12V), an outdoor power bank, or a 3S/4S LiPo battery as the input power source, which is very flexible.
Product Gallery & Details
FAQS
1. HOW DO I PLACE MY ORDER?
- Simply choose your style on the product page then click the “Add To Cart” button and follow the simple steps to complete your order.
- We’ll prepare your order and let you know when it's on its way!
2. HOW LONG WILL IT TAKE TO SHIP MY ORDER?
- Orders typically ship within 5 to 10 business days. For international orders, transit will take an additional 1 to 2 weeks.
3. MY TRACKING NUMBER ISN’T WORKING
- Tracking numbers can take 3-5 days to appear in the shipping carrier's system. Occasionally, the shipping carrier can lose an order. If the tracking number is still not working within a few days, please contact the shipping carrier.
4. I NEED HELP WITH A LATE ORDER
- Orders typically ship within 5 to 8 business days. For international orders, transit will take an additional 1 to 2 weeks.
- If your order has not arrived after 10 business days (domestic) and 20 business days (international), please contact our team, we are happy to assist.
- Products that need to be customized, production time is 10-25 days to ship, product details will be announced.
5. We accept the following secure payment methods:
Credit Cards (via Airwallex):
- Visa / Mastercard / American Express
- Secured by Airwallex, a global compliant payment platform
Third-Party Payments:
- PayPal (Personal & Business Accounts)
Bank Transfer:
- Corporate Account Transfer (SWIFT/IBAN Supported)
6. WHEN WILL MY CARD BE CHARGED?
Just after your order has been successfully placed.
7. HOW SECURE IS MY PERSONAL INFORMATION?
- We adhere to the highest industry standards to protect your personal information when you checkout and purchase.
- Your credit card information is encrypted during transmission using secure socket layer (SSL) technology, which is widely used on the Internet for processing payments. Your credit card information is only used to complete the requested transaction and is not subsequently stored.
7.Shopping safety guaranteed
We use PAYPAL to collect payment. For details, you can check the official website of PAYPAL to guarantee your shopping funds.
https://www.paypal.com/webapps...
8.What delivery?
We cooperate with DHL, FedEx, EMS shipping companies, you can choose freely when placing orders;
- DHL : https://www.dhl.com/
- FedEx :https://www.fedex.com/
- EMS:https://www.ems.com.cn/
- Logistics Tracking:https://www.uavmodel.com/apps/17TRACK
9.Refund issue?
Due to the buyer's own reasons, resulting in a refund. This website will not be responsible for the payment of processing fees including returning shipping cost.
Made-to-order products: Once a customer submits an order, the product will immediately go into production. Given its customized nature and the immediacy of production, such orders become binding upon confirmation and no refunds will be accepted.
All products that require production time are classified as customized products.
10、Answer: Customs clearance responsibility depends on trade terms (e.g., EXW, FOB, DDP). Generally:
- Our Default Terms: The customer (consignee) must handle clearance and pay all duties/taxes.
- Exceptions: If your order states "DDP (Delivered Duty Paid)", we will handle clearance.
11、Answer: Typically required documents:
- ID (e.g., passport) or business tax number;
- Commercial invoice (contact us after purchase);
- Tip: Contact your local customs in advance!
12、Answer: Duties are determined by your country’s customs based on product type, value, and regulations. To estimate costs:
- Check your local customs website;
- Use third-party tools (e.g., Avalara, DutyCalculator).
13、Answer:
- Delays: Contact customs directly to submit documents/payments. We can provide tracking numbers or invoices.
- Destruction: Losses due to unresponsive clearance will be borne by the customer.
- Exceptions: If caused by our documentation errors, contact us for support.
14、Answer: You will receive a commercial invoice and packing list via email. For other documents, contact sales@uavmodel.com (response within 24 hours).
15、Answer: The following products may be seized or rejected:
- Prohibited items in your country (e.g., cosmetics with banned ingredients);
- Products without required certifications (e.g., electronics lacking CE marks);
- Under-declared value (may raise tax evasion suspicions).
If you pay by credit card, your payment could be somehow denied at the checkout by our system in defense against possible credit card fraud. It's a good idea to call your credit card company or bank ahead of time to let them know about the purchase so that it doesn't get declined.
Under such circumstance, here are 3 solutions for you:
1. If you have a PayPal account, please try to pay by PayPal.
2. Please switch to your other credit/debit cards.
3. If you do not have a PayPal account, please select PayPal still at the checkout page & click the complete order button. Then you'll be directed to a page with access to both PayPal and Debit/Credit card payment (for the latter option, you don't have to register for PayPal).
As following steps:
Step 1. Select PayPal (even if you don't have a PayPal account)

Step 2. Click on "Pay with Debit or Credit Card".

Step 3. Fill in your credit card info and complete your order.

Bank transfer information:
Account Number: 63001185921
Holder Name: Xiamen Gaoteng Trading Co., Ltd.
Support Currency: AUD CAD CHF DKK EUR GBP HKD JPY NOK NZD SEK SGD USD ZAR
Bank Name: JPMorgan Chase Bank N.A. Hong Kong Branch
Bank Location Country: HONG KONG, CHINA
Bank Address: CHATER HOUSE, 8 CONNAUGHT ROAD, CENTRAL, HONG KONG
Account Type: Current
Swift/BIC: CHASHKHH (CHASHKHHXXX,If 11 characters are required)
Routing Number: 007863
Bank Code: 007
Branch Number: 863
Please include the following memo/message to receiver when making a payment: [Buyer Name][Invoice/Contract Number][Product]
UAVMODEL
Ownership:
UAVMODEL CO., LTD.;
ZHANGZHOU YICHENG TECHNOLOGY CO., LTD.;
XIAMEN GAOTENG TECHNOLOGY CO., LTD.
Email:Sales@uavmodel.com
Phone: +8613015671328
313, No.25, Jingxia Road, Wenpu Industrial Park, Jiaomei Town, Taiwan Investment Zone,
Unit 2502-3, No.1110, Jimei North Road, Software Park, Torch High-tech Zone, Xiamen

What we really do?
UAVMODEL is a leading UAV airframe manufacturer. Our UAV platforms serve professional needs in industrial inspection, gas and oil, precision agriculture, mapping, public safety, construction, forestry and defense.
10+ Years of Experience
500+ Successful Cases
12+ Industry Awards
Our Vision
We are committed to the R&D of medium and large UAVs and specialized UAV technologies for complex environments. Our focus includes design, production, testing, sales, and service, providing comprehensive solutions based on our technology.
100% Client Satisfaction is Our Priority
Using Complex & Reliable Digital Solutions
High Customer Support Standards
Working with Leading Market Experts
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