Ka dib ku dhawaad 10 sano oo horumarineed, gawaarida tamarta cusub ee tamarta ayaa sameeyay kayd farsamo. Naqshadeynta qaybaha gawaarida korontada iyo qaybaha ayaa leh aqoon badan, oo ay ka mid yihiin naqshadeyntaprecharge resistorwareegga hore ee dallacaadda wuxuu u baahan yahay inuu tixgeliyo shuruudo badan iyo xaalado shaqo. Xulashada iska caabbinta precharge waxay go'aamisaa xawaaraha baabuurka ka hor wakhtiga dallacaadda, cabbirka booska uu ku jiro iska caabiyaha precharge, badbaadada tamarta sare ee gaariga, isku halaynta iyo xasilloonida.
Precharge resistorwaa resistor si tartiib tartiib ah u dalacaya capacitor-ka marxalada hore ee gaadhigu koronta sare ee korantada, hadii aanu jirin iska caabin hore u dallaca, dallacadu aad ayuu u waynaan doonaa si aanu u jebin capacitor-ka. Awood-koronto-sare oo si toos ah loogu daray capacitor-ka, oo u dhiganta wareegga-gaaban ee degdegga ah, wareegga-gaaban ee xad-dhaafka ah waxay dhaawici doontaa qaybaha korantada ee sarreeya. Sidaa darteed, marka la naqshadeynayo wareegga, precharge resistor waa in la tixgeliyaa si loo hubiyo badbaadada wareegga.
Waxaa jira laba meelood oo ku yaal wareegga-sare ee gaadhi koronto halkaas ooprecharge resistorWaxaa la isticmaalaa, kuwaas oo ah kontoroolka mootada precharge circuit iyo qalabka korantada sare ee wareegga hore ee dallacaadda. Xakamaynta mootada (wareega rogayaasha) waxa uu leeyahay capacitor weyn, kaas oo u baahan in hore loogu dallaco si loo xakameeyo capacitor-ka ku dallacaaya hadda. Qalabka korantada-sare guud ahaan waxay leeyihiin DCDC (DC Converter), OBC (charger-board), PDU (sanduuqa qaybinta korantada sare), bamka shidaalka, bamka biyaha, AC (compressor-conditioning) iyo qaybo kale, waxaa jiri doona awood weyn oo gudaha qaybaha, sidaas darteed waxay u baahan yihiin in horay loo dallaco.
