1. Voltage poob thaum Cranking
Txawm hais tias koj lub roj teeb qhia 12.6V thaum tsis ua haujlwm, nws tuaj yeem poob qis hauv kev thauj khoom (xws li thaum pib lub cav).
Yog tias qhov hluav taws xob poob qis dua 9.6V, lub tshuab hluav taws xob thiab ECU yuav tsis ua haujlwm tau zoo-ua rau lub cav ua kom qeeb lossis tsis tag.
2. Roj teeb Sulfation
Thaum lub roj teeb zaum tsis siv lossis raug tso tawm tob heev, sulfate crystals tsim rau ntawm daim hlau.
Qhov no txo cov roj teeb lub peev xwm los tuav lub nqi lossis xa lub zog sib xws, tshwj xeeb tshaj yog thaum pib.
Sulfation tuaj yeem cuam tshuam thaum xub thawj, ua ntej tag nrho tsis ua haujlwm.
3. Internal Resistance thiab Kev laus
Raws li cov roj teeb muaj hnub nyoog, lawv cov kev tiv thaiv sab hauv nce, ua rau nws nyuaj rau lawv kom xa cov hluav taws xob tawg ceev uas xav tau los pib.
Qhov no feem ntau ua rau qeeb cranking, tshwj xeeb tshaj yog tom qab lub tsheb zaum ib pliag.
4. Parasitic Drain + Tsis muaj roj teeb
Yog tias koj lub tsheb muaj cov kab mob cab (ib yam dab tsi ntws tawm thaum lub tsheb tawm), txawm tias lub roj teeb noj qab haus huv tuaj yeem tsis muaj zog thaum hmo ntuj.
Yog tias lub roj teeb twb tsis muaj zog lawm, nws yuav pib zoo qee zaum thiab ua tsis tau lwm lub sijhawm, tshwj xeeb tshaj yog thaum sawv ntxov.
Diagnostic Tips
Quick Multimeter Test:
Xyuas qhov voltage ua ntej pib: yuav tsum yog ~ 12.6V
Txheeb xyuas qhov hluav taws xob thaum pib: Yuav tsum tsis txhob poob qis dua 9.6V
Txheeb xyuas qhov hluav taws xob nrog lub cav khiav: yuav tsum yog 13.8-14.4V (qhia tau tias lub tshuab hluav taws xob tau them)
Tej yam yooj yim kuaj:
Wiggle lub davhlau ya nyob twg: Yog tias lub tsheb pib thaum jiggling xov hlau, koj yuav muaj lub davhlau ya nyob twg xoob lossis corroded.
Sim ib lub roj teeb sib txawv: Yog tias lub roj teeb paub zoo daws nws, koj qhov qub tsis tuaj yeem ntseeg tau.
Cov cim ceeb toom ntawm lub roj teeb tsis zoo
Pib zoo qee zaum, tab sis lwm zaus: qeeb crank, nyem, lossis tsis muaj crank
Dashboard teeb flicker lossis dim thaum sim pib
Nyem lub suab tab sis tsis pib (lub roj teeb tsis tuaj yeem siv lub tshuab hluav taws xob solenoid)
Lub tsheb tsuas yog pib tom qab dhia - txawm tias nws tau tsav tsis ntev los no
Post lub sij hawm: May-05-2025
