Search  for anything...
GOOLOO

GOOLOO S4 4 Amp Car Battery Charger Automotive, 6V/2A 12V/4A Smart Trickle Charger Maintainer with Supply Mode, Automatic Motorcycle Battery Charger for Truck Lawn Mower RV Boat Lead-Acid Battery

    • Based on 1,871 reviews
Condition: New
Checking for product changes
$29.99 Why this price?
Holiday Deal · 50% off was $59.99

Buy Now, Pay Later

As low as $7 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: 20 left in stock
Fulfilled by Amazon
Arrives Saturday, Dec 28
Order within 23 hours and 52 minutes
Available payment plans shown during checkout

Size: 4A


Features

  • It's the all-in-one universal charging solution - battery charger, battery maintainer, trickle charger, float charger, plus battery desulfator. Designed for 6-volt and 12-volt lead-acid batteries, like WET, SLA, GEL, AGM, FLOODED, VRLA batteries, and more, plus 12volt LiFePO4 batteries.
  • Auto repair and pulse current charging devulcanize battery to restore the battery lost performance with the GOOLOO 10-stage intelligence charging program, and can charges batteries as low as 3 volt.
  • Intelligently adapt to different ambient temperatures to eliminate over-charging in hot climates and under-charging in cold climates.
  • The LCD display showing charging voltage, charging mode, battery levels.etc. 'V' blinks on the screen means enter maintenance mode.
  • Not only a battery trickle charger, also an advanced battery charger maintainer. A fully-automatic, worry-free smart battery charger for everyday and long time use with zero overcharge, for cars, automobiles, motorcycles, scooters, lawn mowers, ATVs, tractors, trucks, SUVs, RVs, boats, PWCs and more.
  • We provide an 18-month warranty, if you have any questions, please feel free contact us, our customer service team will provide you with technical support and warranty services.

Brand: GOOLOO


Color: red


Product Dimensions: 3.35"D x 9.06"W x 1.97"H


Item Weight: 1.32 Pounds


Input Voltage: 12 Volts


Product Dimensions: 9.06 x 3.35 x 1.97 inches


Item Weight: 1.32 pounds


Item model number: S4


Date First Available: April 7, 2021


Manufacturer: GOOLOO


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Dec 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Quality at a bargain price
Size: 10A
Received this charger today in the usual non-protective plastic bag. Fortunately, the box inside was undamaged and the contents were fine. The box that the charger is shipped in is well done and solid. I put the charger on my vehicle which has a good battery but needs to be maintained. The Gooloo brought the battery to full charge with internals brought to healthy battery level as well. The unit did not get overly hot with the top temperature being 104 degrees. It ran mostly in the high 90s which is very good in a Florida garage. Fit and finish of this light-weight tool is excellent. The illuminated screen is good but the battery categories are a bit small. E.g standard, agm, etc. Crisp but small . Again, tolerable to fine, depending on your eyesight. At the end of charging the unit registers Ful V and continues to trickle charge as needed. This is an excellent buy if it proves to be reliable over time. Highly recommended after first successful charging session. ... show more
Reviewed in the United States on October 20, 2023 by Family Man
    • Really nice charger/maintainer.
Size: 4A
Really like this charger, I like the charging display on the charging progress.
Reviewed in the United States on November 8, 2023 by pizmobob
    • Good selection
Size: 4A
The charger works good
Reviewed in the United States on November 14, 2023 by Tony
    • Does what it's supposed to
Size: 4A
I was going to reorder the brand I have three of since I know what the silly pictures mean. The display on this one is a little more intuitive but I wouldn't have guessed 12M was for maintenance since I assume/hope that if it's in charge mode it would switch to maintenance when fully charged? It would be nice if it displayed the charge voltage rather than just FULL when in Maintenance mode. Checking with my OTC brand VOM I saw 13.8V when the charger displayed FUL. Disconnecting it the battery was indeed at 13.8 and dropped rapidly (13.6V in about 30 sec). I think nominally the battery can hold ~13.2V when not connected to a load. Reconnecting the display showed 13.6 and rapidly climbed up to and help 14.4. IIRC that's about the voltage the alternator supplies. It's a bonus that this charger can be used as a 12V supply. Not sure when that might be useful but if you have something that is powered from the "cigarette lighter" I guess you could use this outside of a vehicle. I think maybe it's to replace a battery of a car that's in storage but you want to keep the memory and maybe have the dome light work. The backlight on the display is a nice feature. ... show more
Reviewed in the United States on August 2, 2023 by Bernie Hayden
    • Nice charger
Size: 4A
A good quality product for a good price
Reviewed in the United States on November 5, 2023 by Nawder Loswin
    • These remember your settings and I love them, one for each car.
Size: 6A
I liked the ease of use, size and length of cord. A must for all battery charging maintaining needs
Reviewed in the United States on October 18, 2023 by Kevin C. Cloutier
    • Llegó a tiempo
Size: 4A
Review Image by Hernando Arciniegas Hernando Arciniegas
Lo probé y funcionó perfecto
Reviewed in the United States on October 2, 2023 by Hernando Arciniegas Hernando Arciniegas
    • Charger
Size: 4A
Works great!!!
Reviewed in the United States on October 25, 2023 by dennisrobillard

Can't find a product?

Find it on Amazon first, then paste the link below.