Klein Tools - For Professionals Since 1857

Portable Rechargeable Battery, 10050mAh


  • 10050 mAh capacity battery; up to 18W of total power
  • USB Type-A with high speed charging powered by Qualcomm® Quick Charge™ 3.0 Technology
  • USB Type-C with Input and Output capable of up to 15watts
  • Smart battery protection
  • Auto-device detection
  • Illuminated ports
  • Rugged chassis for added durability
  • Battery status LED indicators
  • USB Type-C to USB Type-A cable included
  • Four - eight hours charging time
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The Klein Tools KTB1 is a Lithium-ion powered portable battery (power bank) designed to charge common mobile devices like cell phones, tablets, portable batteries, headphones, headlamps and other smaller USB devices. KTB1 is equipped with Qualcomm® Quick Charge™ technology, delivering up to 75-Percent faster charging versus conventional USB charging. KTB1 features a rugged, compact design with impact resistant housing to stand up to active, professional daily use.

Output Port:
USB Type A and C
Input Port:
USB Type C
Rechargeable Battery
Portable Battery to Recharge Personal Devices
Special Features:
Battery Status Indicators, Rugged Chassis, Smart Battery Protection, Qualcomm® Quick Charge™ 3.0 Technology
Single Cell Equivalent Capacity:
36 Wh
Battery Type:
Lithium-ion 18650
Number of Batteries:
Battery Weight:
4.8 oz (135 g)
Number of Lithium-Ion Cells:
Recharge Time:
4 to 8 Hours
Operating Temperature:
32° to 104° F (0° to 40° C)
Battery Life:
300 Cycles
Shelf Life:
Charge Every 3 Months
USB Type C to USB Type A cable
Overall Length:
2.5'' (6.4 cm)
Overall Height:
4.1'' (10.45 cm)
Overall Width:
1.1'' (2.8 cm)
Plastic, Metal
9.5 oz (270 g)
Additional Information
  • Do NOT use the power bank in excess of its output rating. Overload outputs above rating may result in risk of fire or injury to persons.
  • Use of a power supply, charger, or cable not recommended or sold by power pack manufacturer may result in risk of fire or injury to persons.
  • Do NOT use power bank that is damaged or modified. Do NOT expose power bank to rain or snow. Keep away from high voltage devices.
  • Do NOT subject power bank to vibration, impacts or drops.
  • Do NOT attempt to repair battery or charging cable. There are no user-serviceable parts.
  • Do NOT attempt to insert other USB connector types into USB-A or USB-C ports.