Futaba BR4000 - Battery/Balance Checker/Servo & Receiver Checker
This is a useful multi-battery tester for RC hobby batteries that also doubles as a USB charger!

Features:

• Lithium cell checker for LiPo, LiHV, LiFe & LiIon (1-8s)
• Lithium cell balancer for LiPo, LiHV, LiFe & LiIon batteries (1-8s)
• USB charger (USB-A port)
• Receiver signal test (PVM/S.BUS)

Specs:

• Input voltage XT60i onnector: 5-15V
• Input voltage XH 2.54 balance port (1s): Max 15V
• Input voltage XH 2.54 balance port (2-8s): Max 4.8V per cell
• Voltage measurement accuracy: ±0.005V @ 4.2V
• Balancing cells accuracy: <0.005V
• Supported USB-A charging: QC 2.0/3.0, BC1.2, max output 12V/2A
• Size: 80x55x19mm
• Weight: 59g

Available ports:

• XT60i: To power the USB-A charging port (5-15V)
• JST-XH 2.54: 1-8S balancing port
• USB Micro B: for firmware updates

Supported batteries:

• LiFe (Lithium Ferrite): 1-8s
• LiPo/LiHV (Lithium Polymer): 1-8s
• LiIon (Lithium Ion): 1-8s
• NiCd (Nickel Cadmium): 3-10 cells
• NiMH (Nickel Metal Hydride): 3-10 cells