Customized 2-IN-1 Electric&Manual Knapsack Sprayer State-of-the-art technology, dual function sprayer, Electric + Manual in one unit. Manual spraying is possible when the battery is low. divided into 2 types: Removable and Non-Removable Battery Knapsack Sprayer
OEM ODM Customized Battery Knapsack Sprayer 18L/20L Battery Knapsack Sprayer Lead-acid Battery Knapsack Sprayers Lithium-Ion Battery Knapsack Sprayers One charge can last for 3-8 hours of non-stop use