Buying Duracell will fully charge the battery upon purchase. Cheaper batteries lose their charge in anticipation of a purchase. Only one battery is required for the timer. 4 packs was a good suggestion for the number of batteries needed. "I use the Duracell brand and no others."
EBL 16-Pack AA AAA Rechargeable Battery Combo - 8X AA 2300MAh & 8X AAA 800MAh Batteries
30 Review
Long-Lasting High-Performance EBL AA Batteries - Pack Of 28, Leak-Proof Design, 1.5V Double A Alkaline Power
29 Review
Long-Lasting EBL 9V Lithium Rechargeable Batteries With USB 5400MWh Capacity (Pack Of 2)
35 Review
TalentCell 9V Lithium Ion Battery: High Capacity 500MAh Rechargeable Li-Ion Polymer Battery With Micro USB Charging Port - 1-Pack For Ultimate Convenience
27 Review
Portable Rechargeable Electric Spin Scrubber For Household Cleaning - Ideal For Bathroom, Kitchen, And Windows. Power Scrub Brush For Bathtubs, Sinks, Tiles, Grout, And Stove Cooker.
36 Review
20 Foot High Reach Duster For Cleaning Kit With 5-12Ft Heavy Duty Extension Pole, Sturdy Extendable Microfiber Feather Duster, High Ceiling Fan Duster, Cobweb Dusters, Window Squeegee Cleaner Kits
35 Review
Effortlessly Clean Hard Floors With DEERMA'S 360Β° Rotation Spray Mop - Includes 8 Microfiber Refills And 350Ml Water Tank
42 Review
π§Ή Efficient Spray Mop for Floor Cleaning, Tsmine Microfiber, 8 Pads & 550ML Refillable Bottle for Household Hardwood, Laminate, Tile
35 Review