KEYSIGHT N6783A-BAT Battery Charge/Discharge Module (0~8V/-2A to 3A, 24W)

DC output ratings (volts/amps/watts): 8 V/−2 A to 3 A/24 W 

Ripple & noise (p-p/rms): 8 mV/1.5 mV

Voltage programming accuracy: 0.1% + 10 mV                

Current programming accuracy: 0.1% + 1.8 mA

Voltage measurement accuracy: 0.05% + 5 mV

Current measurement accuracy: 0.1% + 0.6 mA 

See the datasheet to choose suitable options

Datasheet