fzg123：
在此非常感谢兄弟不厌其烦的指导.但小弟还是有些不明之处,望大侠指教,普通铅酸充电器一般有三个阶段,恒流、恒压和浮充,如上大侠所说,是不是从恒流直接转为恒压和浮充,恒压和浮充同时进行.以下是国外公司做的充电器规格书,它是先从恒流,再到恒压充一段时间再转到浮充状态.望大侠指点.*CCmode=Constantcurrentcharge**Itispossibletoadjustthesevoltages(factoryset-up)***SeeStage3descriptionbelowStage1:DeepDischargeChargingPulseMode:LEDFlashThechargerstartschargingat0.5Vandgivepulsecurrentupto5V.Thishaseffectofremovingloosesulphationformedduringdeepdischargestateofthebattery.Stage2:ConstantCurrentMode(CC):LEDOrangeThechargerchangestoconstantcurrent1.5A.Whenthebatteryvoltagereachesupto28.8V,thechargingstagechangesfromCC(ConstantCurrent)toCV(ConstantVoltage)mode.Stage3:ConstantVoltageMode(CV):LEDGreen Thechargerholdsthebatteryat28.8Vandthecurrentslowlyreduces.Whenthecurrentreachesat0.10CC(CC=ConstantCurrent),thispointcalledtheSwitchingPoint.TheSwitchingPointisoneofthegreatfeatureofthisbatterychargerthatitcanadjustthecurrentautomaticallyaccordingtobatterycapacity.Otherchargersarenotcapabletoadjustthecurrentautomatically. Stage4:StandbyVoltageMode:LEDGreenThechargermaintainsthebatteryvoltageat27.6Vandcurrentslowlyreducestozero.Chargercanbeleftconnectedindefinitelywithoutharmingthebattery.Recharging:LEDOrangeIfthebatteryvoltagedropsdownto25.0V,thechargerchangesfromanymodetoConstantCurrentmodeandrestartcharging.ThechargingcyclewillgothroughStage2toStage4.Soneilchargercanchargegel,sealedorwetleadacidbatterieswithoutuseofanyswitch.4.TwocoloursandfunctioninoneLED:LEDisusedtoshowthechargingstatus.WhentheLEDisred,thechargerisinchargingorrechargingmodeandthecurrentis4Aconstant.WhentheLEDGreen,thechargerisinStandbymodeandnocurrent(zero)isflowing.5.Protection:a)Reversepolarityprotection-provided