8 4v dc charger with power management

{"cid":"91200138","title":"Charger DC 8.4V Measurement items offering seamless power management and measurement results across multiple industries","imgUrl":"https:\/\/img.chinax.com\/nimg\/92\/29\/0723eafa409e8756dc2bfe4a610b-200x200-1.jpg","attrs":{"Brand Name":"Retro Reflective Meter","Model Number":"STP-TSR","Minimum Order Quantity":"1","Delivery Time":"5-8 work days","Place of Origin":"CHINA","Certification":"CCC","Packaging Details":"inner box and master carton , 1pc per carto","Payment Terms":"T\/T","Supply Ability":"1000","Charger":"DC 8.4V","Built-in battery capacity":"3500mAh","Angle of incidence":"-4\u00b0","Ambient temperature":"-5\u2103~+50\u2103","Data storage space":"8GB","Observation angle":" 0.2\u00b0","Continuous working time of battery":"\uff1e8h","Ambient humidity":"\uff1c98%, No Frost"}}

{"cid":"91221459","title":"Compact 150w Plug-In Charger for C-Power 60v 3a Li-ion Battery 73v 71.4v 72.5v 67.2v","imgUrl":"https:\/\/img.chinax.com\/nimg\/65\/05\/5753213bbffbd0cb9f0439822863-200x200-1.jpg","attrs":{"Price":"$10.00\/pieces 2-1999 pieces","Minimum Order Quantity":"2 pieces","Place of Origin":"China","Type":"Plug-In Charger, Constant Voltage","Use":"scooter, electric car, electr bike","Is LED Lamp Illumination":"Yes","Output":"64v","Output Power":"150w","Input":"100-240V\/1.2A, 100-240V\/0.5A","Application":"Battery charger","Warranty":"3 Years","Color":"Black","AC plug":"EU UK AU CN","Material":"ABS","Output current":"3000mA","DC connector":"5.5*2.1 5.5*2.5.etc (optional)","DC Cable":"Customers Requirement","Brand":"C-Power"}}