From the brand

About Us

Since 1995, Sailnovo Battery Tender has been proud to design, manufacture, and distribute technologically advanced products that meet the changing needs of our customers worldwide! Our focus has always been on innovation.

Sailnovo Battery Tender provides high-quality, fast-charging convenience and performance. With our Microprocessor Technology and quick-connect feature, your vehicle batteries are always ready to go when you are!

Sailvono Smart Battery Charger

【Meet the Sailvono 4A Battery Charger】An 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 : -4°F to 104° F ( -20° Cto 40° C)
【Wide Applycation】Perfect 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 Battery】Use 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 Charging】Using 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 Mode】Sailvoo 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 Climate】Intelligently adapt to different ambient temperatures to eliminate over-charging in hot climates and under-charging in cold climates.
【Accessories & Protable】4A 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 & Secure】Use 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.