21V1.2A Lithium Battery Charger Electric Backpack Sprayer Charger 18.5V?3.7 * 5Strings? Power Adapter for Gardening Pump Sprayer

Additional Details from the Manufacturer

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More features

• Special Designed for 21V (3.7*5s)18.5V Ternary lithium Battery -- This 21V 1.2 Amp charger is designed for 18.5V(3.7*5strings) lithium battery, it enables more than 90% high charging efficiency for Ternary lithium battery charging. It maximizes optimizes the lithium battery performance, and extends the battery lifetime to a large extent.
• High Charging Efficiency--The single-channel voltage is up to 21V, with a maximum current of 1.2Amp. it can charge a 18.5V 2Ah Ternary lithium battery to 50% in 1 hours, 2 times faster than an ordinary 500mA battery charger.Suitable for 18.5V(3.7V*5s) 1-10ah Ternary lithium batteries
• LED Indicator and Durable Shell--The battery charger with one LED indicator is easier to monitor the battery charging status(---Charging :Red light,Full:Green light).The sturdy shell can effectively protect the charger, the flame-retardant material effectively protects safety
• Multiple security protections --- Overcharge protection, Overvoltage protection, Short circuit protection, Overcurrent protection
• Attention-- This is a dedicated charger for 21v (18.5v-3.7*5s )Ternary lithium battery and cannot be used to charge lead-acid or other batteries. Disconnect the power supply before connecting or disconnecting the battery charger from the battery.