Nightmare Before Christmas Stickers 50pcs Vinyl Waterproof Stickers for Laptop Skateboard Water Bottle Computer Phone Halloween Theme

Lead-acid batteries use the constant current constant voltage (CCCV) charging method. Charging time is 12-16 hours for large batteries, and 36-48 hours for large batteries. In the CCCV method, lead-acid batteries are charged in three stages: [1] constant current charging, [2] topping charging, and [3] float charging. During constant current charging, the is charged to about 70% in 5-8 hours, and the remaining 30% is filled by a slow topping charge, which lasts for another 7-10 hours. The third stage, float charging, keeps the is fully charged. Figure 1 shows these three stages.