Makita 14.4V-18V Lithium-Ion Battery Models Bl1815, Bl1830, Bl1840, And Bl1850 Specification: Input Voltage: 110V-220V AC, 50-60HZ Efficiency: ? 80% Output Voltage:14.4V-18V Charge Time: 15mins (BL1415 BL1815), 22mins (BL1430 BL1830), 36mins (BL1440 BL1840), 45mins (BL1850) Battery Type: Li-Ion/ Lithium-Ion (not for Ni-Cd or Ni-Mh batteries) AC Plug: American type flat pin. Protections: 1.Stop when charger faulty detected 2.No charger to a defective battery Auto Cut off when Short-circuit 3.Tempetature: stop charging when overheat 4.Over time: stop charging when charging time ? 120 minutes LED Indication: Green Flshing: Plug in Red Flashing: Battery is hot. Charing will begin when battery cool down Red Sustained Light: 0~80% charing Red, Green Sustained Light: 80~100% charging Green Sustained Light: Charing is complete Yellow Sustained Light: Maintenance charging Red, Green Flashing: Battery pack or charger is defective Product Features Compatible with Makita BL1815 BL1830 BL1840 BL1850 BL1860 BL1415 BL1430 BL1440 BL1450 BL1460 etc Universal 110V to 220V voltage input, charges Li-Ion 3.0Ah battery in only 22 minutes and Li-Ion Compact series batteries in only 15 mins LED temperature gauge lighting, multi protections, it is easy and safe to work, and Energy-saving sleep mode protects the battery from damage. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!