GOOLOO S4 4A Car Battery Charger | 6V/2A 12V/4A Smart Trickle Maintainer with Supply Mode
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Description
xAll-in-one charging solution for a wide battery family
The GOOLOO S4 is a compact, all-in-one unit that serves as a charger, maintainer, trickle charger, float charger, and desulfator. It supports 6V and 12V lead-acid batteries—WET, SLA, GEL, AGM, VRLA, and more—and also accommodates 12V LiFePO4 cells. This versatility helps simplify gear care whether you’re at home, in the garage, or on the road.
Smart charging that adapts to your battery and environment
Powered by a 10-stage intelligent charging program, the S4 tailors current and voltage for each battery type. It can initiate charging from batteries as low as 3V, and it automatically adjusts to ambient temperatures to minimize overcharging in heat and undercharging in cold conditions.
Clear display and practical operation
The bright LCD keeps you informed with charging voltage, mode, and battery level. A blinking "+V" indicator signals maintenance mode. This user-friendly design supports everyday use, seasonal storage, and occasional maintenance tasks with confidence.
Beyond charging: health, maintenance, and readiness
In addition to charging, the S4 offers desulfation and pulse charging features that may help recover performance over time. Designed for cars, motorcycles, lawn mowers, ATVs, trucks, RVs, boats, and more, it supports long-term storage and keeps batteries prepared for your next outing or project.
Safety, compatibility, and support
Automatic temperature compensation, smart shutoff, and a robust charging routine help reduce risk while keeping you in control. The S4 comes with an 18-month warranty and access to responsive technical support for setup and questions.
What you get and practical usage
- Universal 6V/2A and 12V/4A operation for a range of battery sizes
- Supply mode to sustain battery health during long storage periods
- 10-stage intelligent charging with automatic temperature compensation
- Desulfation and pulse charging to help refresh older batteries
- LCD voltage, mode, and battery level display for easy monitoring
- Fully automatic, maintenance-friendly design with zero overcharge risk
FAQ
Q: What battery types and voltages does the GOOLOO S4 support?
A: Supports 6V and 12V lead-acid varieties (WET, SLA, GEL, AGM, VRLA) and 12V LiFePO4, suitable for cars, bikes, boats, and more.
Q: What warranty and support come with the S4?
A: Includes an 18-month warranty with access to technical support and warranty services from GOOLOO.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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