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HOMEABOUT USPRODUCTSTECHNOLOGYCONTACT USHELPERProducts CatalogSmart Battery ChargersLi-ion/LiFePo4 Charger NIMH/NICD Charger Lead-Acid ChargerDC Input ChargersCustomized ChargersBattery Management (BMS)Battery Fuel GaugeLi-ion Battery BMSMPPT Solar ControllerSmart Battery ProductPortable Power SupplyCustomized BatterySwitch Mode Power SupplyACDC AdapterCustomized SMPSLocation: Home pageAbout Green Digital Power TechGreen-Digital Power-tech Co. Ltd engineers have dedicated to digital control power products for 13 years. From smart battery chargers to portable external battery system, our products covers many different applications based on battery powered devices. We have more than 50 standard models for your selection. These products are designed for NIMH, NICD, Li-Ion, Li-polymer, LiFePo4 and Lead-acid (AGM, GEL, VRLA, or WET ) type batteries application. With 6000 square meter factory and 400 employees. click here to learn more content......................... Products Gallery Portable Power supply is designed for smart phones, tablets, laptop computers, PSP, GPS and many kinds of digital products. DC input chargers is designed for DC source input condition, such as car, truck and solar PV pannel application which is used ... Custom battery pack use high quality Li-ion or Li-Polymer battery cells, maximum discharge current can reach 200A... Battery fuel gauge is designed for indicating the battery fuel gauge of general NIMH,NICD,Li-ion,LiFePo4 and Lead-Acid NIMH Battery Charger can charge 3.6V~36V 1.0~20Ah NIMH/NICD battery-pack, build-in MCU to detect -dV, dt/dT, fast and safe... Li-Ion Battery chargersuit for 3.7V~37V 1.0~100Ah Li-ion/Polymer/FePo4 battery-pack, with battery monitor fuel gauge LEDs... Lead-Acid battery charger: for 6V~60V 4~200Ah many kinds of Pb-Acid battery (VRLA, AGM, SLA, GEL),with battery monitor meter . DCN50-III is an engineering grade intelligent charger, use car DC source or Solar PV panel to charge NIMH,Li-Ion,LiFePo4... Customized Charger is our main business. With over 20+ years experience in smart battery charger designing and manufacturing... BMS(Battery management system)has kinds of feature: measure the fuel gauge, cycles, voltage, current; protect over-charge... ACDC Adapter : Output power range can cover up to 72 Watts, standard out is 5V2A~5A; 12V1~6A; 15V1~5A; 19V3.4A...... Customer SMPS (ACDC and DCDC) : ODM design service for customer special requirement, power range cover 5~500W... Technologies for rechargeable batteries and chargers How to design a battery fuel gauge Design a battery fuel gauge is not complex indeed. For Li-ion and Lead-acid battery type, “Voltage-Capacity-Curve Lookup” method can get a relative precise level and also low cost. But for LiFePo4, because their discharge voltage curve is very flat, so you can not only use “Voltage-Capacity-Curve Lookup” to fulfill your precise target. “Current-Accumulating” should be considered....... SMBus protocol used in BMS desig
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