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Sailvono 4A Car Battery Charger Automotive, 6V and 12V Smart Fully Automatic Battery Maintainer, Auto Trickle Charger with Supply Mode for Motorcycle Truck Lawn Mower Boat Marine Lead Acid Batteries

  • Based on 132 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Dec 3
Order within 8 hours and 42 minutes
Available payment plans shown during checkout

Color: Red Black


Size: 4A


Features

  • Meet the Sailvono 4A Battery ChargerAn ALL IN 1 battery charger, 10-stages battery maintainer,trickle charger, and battery desulfator. Designed for all types of 6V and 12V lead-acid (Plus 12volt LiFePO4) batteries. Operating Temperature : -4F to 104 F ( -20 Cto 40 C)
  • Wide ApplycationPerfect for 6-volt and 12-volt lead-acid automotive, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free batteries and more (Plus 12volt LiFePO4 Batteries) . Charge and maintain cars, automobiles, motorcycles, dirt bikes, scooters, mopeds, lawn mowers, ATVs, UTVs, tractors, trucks, SUVs, RVs, campers, trailers, boats, PWCs, jet skis, snowmobiles, golf carts, classic cars, and more.
  • Pulse Repair to Restore Your BatteryUse advance pulse current charge technology, auto repair and pulse current charging devulcanize battery to restore the battery lost performance with the Sailvono 10-stage intelligence charging program, and charges batteries down to 3 volt.
  • Precise ChargingUsing Large LCD Display, the battery charger automotive clearly and visibly shows an LCD screen displaying the charging status and battery status,'V' blinks on the screen means enter maintenance mode. Different modes set different off voltages to make optimal charging. A fully-automatic, worry-free smart battery charger for everyday use - 24/7 - with zero overcharge.
  • Supply ModeSailvoo 4A battery charger and maintainer can also be used as a DC power supply for powering some of the 12V DC devices( 5-14 volt, 3A MAX CURRENT) or as a memory keeper when replacing a battery.
  • Work in Different ClimateIntelligently adapt to different ambient temperatures to eliminate over-charging in hot climates and under-charging in cold climates.
  • Accessories & Protable4A battery charger and battery maintainer with and 5-foot output cord. Fused-ring terminal harness for hard-to-reach batteries and alligator clip accessory cables.The convenient hooks for easy hanging on the wall, and weigh only 0.65kg (1.43lbs).
  • Safe & SecureUse Upgraded IP 65 protection, which means you can use it anywhere with an outlet.Spark-proof circuitry ensures no-spark connections, and automatic reversed hook-up detection verifies correct connection. Offer 2-Year quality assurance & 12-Month refund & timely after-sale services,just get portable 6v 12v trickle charger for car batteries with confidence.

Brand: Sailnovo


Color: Red Black


Product Dimensions: 2.63"D x 5.78"W x 9.6"H


Item Weight: 0.65 Kilograms


Input Voltage: 12 Volts


Product Dimensions: 4.72 x 1.97 x 9.45 inches


Item Weight: 1.43 pounds


Item model number: 5246_2_EU


Date First Available: June 28, 2023


Manufacturer: Sailnovo


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Dec 3

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

Learn more about financing & leasing here.

Top Amazon Reviews


  • gets it done
Color: Red Black Size: 10A
6v option is limited to my knowledge
Reviewed in the United States on November 10, 2023 by Larry Jordan

  • Works great
I've been using this to keep the battery on 2003 Jaguar XK8 charged. Easy to use and does the job.
Reviewed in the United States on April 12, 2023 by DaveB

  • Worked great to know my battery was broken but
The instruction manual was not printed well, letters and half sentences were missing. Otherwise the product worked exactly as intended.
Reviewed in the United States on July 8, 2022 by Babe Harlow

  • Does the job safely
This charger is pretty slow but is safe for amg/gel/flooded batteries it takes about 6-12 hours to charge my agm 30 ah battery to full in my solar generator diy kit. I know you're not supposed to go under 50% charge on these lead acid batteries but to me they are about to be a thing of the past, just heavy worthless junk. But they're cheap and i could give two F's if i fry this 63$ battery lol ... show more
Reviewed in the United States on August 25, 2021 by Gordon

  • Up in the air. Stay tuned
Im going 3 stars for now but will update as appropriate. Hooked up to lawn tractor 12v that only clicked while cranking at about 9.6v. This charger has been connected for 72 hours and voltage came up to 9.6. Assumed i should get more than click but when i tried i got nothing. I reconnected charger and will try again. I was hoping to see indication of desulfication on screen but nothing. Again this review could go up or down depending on this second attempt. I also plan on connecting volt meter this weekend to confirm charging voltage. Not saying battery may not be bad but i dont see how i can go from clicking to nothing Stay tuned ... show more
Reviewed in the United States on December 17, 2020 by David C.

  • product performs as stated and then some after 2 whole days of use. .
After receiving product before xmas as promised, I used the product the very next day on my Craftsman Riding Lawn mower. It keeps your battery from losing amps. My riding lawn mower starts almost right away instead of killing the battery. Recommend the product for your many items to include car battery. Hopefully this will solve my past lawn mower problems. ... show more
Reviewed in the United States on December 22, 2020 by ann

  • Works great, gets the job done right
I have used several different type of chargers in my day. However this is the first one that has been compact. It takes up less space and works just as good as all of the other ones that I have used, in fact even better. Simple to use, charged my battery fast. Would recommend to a friend or might buy as a gift. ... show more
Reviewed in the United States on October 8, 2020 by tony robinson

  • Great value
Best value not the cheapest one but the cheapest one with a digital display easy to read easy to use as long as you know what kind of battery your putting it on
Reviewed in the United States on January 6, 2021 by Nicole Hunter

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