How long does it take to charge that?
A free calculator for charge time on power tools, e-bikes, phones, drones, power stations and dozens of other battery-powered devices. Pick a device below for a pre-filled estimate, or use your own numbers here.
Charge time calculator
Estimated charge time
7 h 4 min
Includes the slower li-ion taper phase above 80%.
Browse by device
Every page below is pre-filled with real battery capacity and charger wattage, plus a full time table for slow, standard and fast chargers.
Power Tools
E-Mobility
- E-Bike Battery (48V, 14Ah)(672 Wh)
- Electric Scooter Battery (36V, 10Ah)(360 Wh)
- Electric Skateboard Battery (36V, 8Ah)(288 Wh)
- Hoverboard Battery (36V, 4.4Ah)(158 Wh)
- Electric Unicycle Battery (84V, 9Ah)(756 Wh)
- E-Moped Battery (60V, 20Ah)(1.2 kWh)
- Folding E-Bike Battery (36V, 10Ah)(360 Wh)
- Electric Motorcycle Battery (72V, 30Ah)(2.2 kWh)
- Electric Cargo Bike Battery (48V, 25Ah)(1.2 kWh)
- Electric Dirt Bike Battery (60V, 40Ah)(2.4 kWh)
- E-Bike Mid-Drive Battery (36V, 15Ah)(540 Wh)
- Electric Scooter Battery (52V, 26Ah)(1.4 kWh)
- E-Skateboard All-Terrain Battery (40V, 10Ah)(400 Wh)
- Golf Cart Electric Battery (48V, 100Ah)(4.8 kWh)
- Personal Mobility Device Battery (24V, 20Ah)(480 Wh)
Phones & Laptops
- Smartphone Battery (4,500 mAh average)(17 Wh)
- Laptop Battery (13-inch, 56 Wh)(56 Wh)
- Gaming Laptop Battery (15-inch, 99 Wh)(99 Wh)
- Tablet Battery (10-inch, 30 Wh)(30 Wh)
- Smartwatch Battery (300 mAh)(1.1 Wh)
- Wireless Earbuds Charging Case(1.8 Wh)
- Handheld Gaming Console (40 Wh)(40 Wh)
- Portable Bluetooth Speaker (20 Wh)(20 Wh)
Drones
Power Stations
- Portable Power Station (300 Wh)(300 Wh)
- Portable Power Station (500 Wh)(500 Wh)
- Portable Power Station (1,000 Wh)(1.0 kWh)
- Portable Power Station (2,000 Wh)(2.0 kWh)
- Mini Solar Generator (150 Wh)(150 Wh)
Garden Tools
Automotive
- Car Battery (12V, 50Ah, Lead-Acid)(600 Wh)
- Motorcycle Battery (12V, 10Ah, Lead-Acid)(120 Wh)
- Portable Jump Starter (12V, 20Ah, Li-ion)(240 Wh)
- Golf Cart Battery Bank (6V x4, 220Ah, Lead-Acid)(1.3 kWh)
- Marine Deep-Cycle Battery (12V, 100Ah, Lead-Acid)(1.2 kWh)
- RV House Battery (12V, 100Ah, Li-ion)(1.2 kWh)
Household
- Cordless Stick Vacuum Battery (25.2V, 2.5Ah)(63 Wh)
- Electric Toothbrush(2.5 Wh)
- Rechargeable AA NiMH Batteries (4-pack, 2,000 mAh)(9.6 Wh)
- Action Camera Battery (1,720 mAh)(6.4 Wh)
- DSLR Camera Battery (7.2V, 1,800 mAh)(13 Wh)
- Wireless Gaming Controller(3.2 Wh)
- Rechargeable LED Flashlight (18650 Battery)(12 Wh)
- Cordless Hair Clipper(4 Wh)