I te ao o ngā pākahiko motuka, he mea nui te kupu "Cold Cranking Amps" (CCA). Ko te CCA e pā ana ki te ine i te kaha o te pākahiko ki tetīmatahia he miihinii ngā pāmahana makariri. He mea nui te mārama ki te CCA kia pai ai te whakahaere o ngā waka, inā koa i ngā rohe he tino uaua te hotoke. Me ruku hohonu tātou ki ngā tikanga o te CCA me te hiranga o tēnei.

He aha ngā Whakakaha Whakaoho Matao?

Ko ngā Whakakaha Hurihuri Matao e tohu ana i te nui o te iahiko ka taea e te pākahiko te tuku i te 0°F (-17.8°C) mō te 30 hēkona, me te pupuri tonu i te ngaohiko o te 7.2 volts neke atu rānei (mō te pākahiko 12-volt). E whakaata ana tēnei pāmahana whakamātautau paerewa i ngā āhuatanga uaua e pā ana ki ngā pākahiko i te wā e tīmata makariri ana, te wāhi e matotoru ai te hinu miihini, ka piki ake te ātete o roto, ka uaua ake te huri i te miihini.

He aha te hiranga o ngā Whakakaha Whakaoho Matao?

(1) Te Mahi o te Āhuarangi Makariri: I ngā āhuarangi makariri, me nui ake te mana e hiahiatia ana e ngā miihini hei tīmata nā te mea kua piki ake te matotoru o te hinu miihini me ētahi atu wai. Ka taea e te pākahiko he CCA teitei ake te whakarato i te mana e tika ana hei tīmata pono i te miihini, ahakoa i roto i ngā pāmahana tio.

(2) Aromatawai Hauora Pūhiko: He tohu nui te CCA mō te hauora me te kaha mahi o te pūhiko. Tērā pea ka uaua ki te tīmata i te mīhini te pūhiko e heke ana te CCA, e tohu ana kua tata mutu tōna ora mahi, ā, me whakakapi.

(3) Hototahi Waka:** He rerekē ngā hiahia mana mō te tīmatanga o ngā waka rerekē, i runga i ngā āhuatanga pēnei i te rahi o te miihini me te ōwehenga kōpeketanga. Ka tohua e ngā kaihanga te whakatauranga CCA iti rawa e hiahiatia ana mō ia tauira waka kia pai ai te mahi.

Me pēhea te whiriwhiri i te pākahiko CCA tika?

(1) Tirohia ngā Whakatakotoranga a te Kaihanga: Tirohia te pukapuka ā-ringa a te rangatira o tō waka, kōrero rānei ki tētahi mekanika hei whakatau i te whakatauranga CCA e taunakitia ana mō tō tauira waka.

(2) Whakaarohia ngā Āhuatanga o te Āhuarangi: Mena kei te noho koe i tētahi rohe he tino makariri ngā hotoke, whiriwhiria he pākahiko he teitei ake te whakatauranga CCA hei whakarite i te mahi tīmatanga pono i ngā pāmahana i raro i te kore.

(3) Te Kounga me te Rongonui o te Waitohu: Kōwhiria ngā pākahiko mai i ngā waitohu rongonui e mōhiotia ana mō tō rātou pono me te roa. Ko ngā pākahiko kounga teitei he rite tonu ngā whakatauranga CCA, ā, ka whakamatautauria kia tino pai ai te mahi.

(4) Rahi me te Momo o te Pūhiko: Me whakarite kia rite ngā āhuatanga ā-tinana me te whirihoranga o te pūhiko ki ngā whakaritenga o tō waka. Hei tāpiri, whakaarohia ngā āhuatanga pēnei i te matū o te pūhiko (hei tauira, te waikawa mata, te AGM, te lithium-ion) i runga i ō tikanga taraiwa me ngā hiahia hiko o te waka.

Whakamutunga

He mea nui te mahi a ngā Whakakaha Whakaoho Matao (CCA) ki te whakatau i te kaha o te pākahiko ki te tīmata i te miihini i ngā āhuatanga makariri. Mā te mārama ki te CCA ka āwhina i ngā kaipupuri waka ki te whakatau whai whakaaro i te wā e whiriwhiri ana i ngā pākahiko, kia tika ai te mahi me te whakahaere pai o te waka, inā koa i ngā rohe he tino uaua te hotoke. Mā te whiriwhiri i tētahi pākahiko me te whakatauranga CCA e tika ana, me te tiaki tika, ka taea e ngā taraiwa te whakaiti i te tūponotanga o te rahunga tīmatanga me te pārekareka ki ngā wheako taraiwa kore raruraru puta noa i te tau.