Li-ion batteries with protection (Xtar, everActive and others): https:***2F***2Fwww.hurt.com.pl***2Fladowarka-sieciowa-everactive-sc-350q-z-gniazdem-usb-qc3-0-oraz-usb-c-pd-18w-p19020.html

• nominal voltage: 1.5V
• Capacity: 2700mAh
• dimensions: 14.5mm x 50mm
• protected against: discharge, overcharging, overload, short circuit
• Number of charging and discharging cycles: more than 1200 Cycles
  

nominal voltage: 3.7V
Typical Capacity: 3350mAh
dimensions: 18,1mm x 70mm
protected against: discharge, overcharge, overload, short circuit

nominal voltage: 3.7V
Typical Capacity: 3350mAh
dimensions: 18,1mm x 70mm
protected against: discharge, overcharge, overload, short circuit

nominal voltage: 3.7V
typical capacity: 3200mAh
dimensions: 18,1mm x 70mm
protected against: discharge, overcharge, overload, short circuit

• nominal voltage: 1.5V
• Capacity: 3000mAh
• Charging Port: USB-C
• protected against: discharge, overcharging, overload, short circuit
• Number of charging and discharging cycles: more than 1200 Cycles
  

• nominal voltage: 1.5V
• minimum capacity: 2400mAh
• typical capacity: 2500mAh
• dimensions: 14.5mm x 50mm
• protected against: discharge, overcharge, overload, short circuit
• Number of charge and discharge cycles: over 1200 Cycles
  

• nominal voltage: 1.5V
• typical capacity: 1000mAh
• energy: 1620 mWh
• protected against: discharge, overcharge, overload, short circuit
• number of charge and discharge cycles: over 1200 cycles

• capacious 18650 battery made in Li-ion technology with electronic protection,
• battery packed in a reusable factory container ,
• minimum capacity of 3350 mAh,
• high current efficiency: 7.0A (continuous), 12.0A (instantaneous 10s),
• possibility of direct charging via micro USB socket!

• capacious 18650 battery made in Li-ion technology with electronic protection,
• battery packed in a factory reusable container,
• minimum capacity 2550 mAh,
• high current capacity: 7.0A (continuous), 12.0A (instantaneous 10s),
• possibility of direct charging via micro USB socket!

• capacious 16340 battery made in Li-ion technology with electronic protection,
• battery packed in a reusable factory container ,
• minimum capacity of 650 mAh,
• high current capacity: 1A (continuous)
• possibility of direct charging via micro USB socket!

• capacious 26650 battery made in Li-ion technology with electronic protection,
• battery packed in a reusable factory container ,
• minimum capacity of 4950 mAh,
• high current capacity: 8.0A (continuous), 12.0A (instantaneous 10s),
• possibility of direct charging via micro USB socket!

• capacious 18500 battery made in Li-ion technology with electronic protection,
• battery packed in a reusable factory container ,
• minimum capacity of 2000 mAh,
• high current capacity: 0.4A (continuous), 6.0A (instantaneous 10s),
• possibility of direct charging via the USB-C socket!

• rated voltage 3V - special version that is a direct replacement for the CR123 lithium battery
• capacious 16340 battery made in Li-ion technology with electronic protection,
• battery packed in a reusable factory container ,
• minimum capacity of 650 mAh,
• high current capacity: 1A (continuous)
• possibility of direct charging via micro USB socket!

• nominal voltage: 1.5V
• Capacity: 2450mAh
• Charging Port: USB-C
• protected against: discharge, overcharging, overload, short circuit
• Number of charging and discharging cycles: more than 1200 Cycles
  

• nominal voltage: 1.5V
• minimum capacity: 2000mAh
• typical capacity: 2200mAh
• dimensions: 14.5mm x 50mm
• protected against: discharge, overcharge, overload, short circuit
• number of charge and discharge cycles: over 1000 cycles

• nominal voltage: 1.5V
• minimum capacity: 680mAh
• typical capacity: 750mAh
• protected against: discharge, overcharge, overload, short circuit
• number of charge and discharge cycles: over 1200 cycles

• Nominal Voltage: 3.7V
• Capacity: 900mAh
• Dimensions: 16.5mm x 34mm
• Protected against: discharge, overload, short circuit.
• Built-in USB-C charging port