He otinga iti te utu, he otinga pai hoki mō te taiao ngā rama pūngao rā mō te whakamārama o waho. He pākahiko ā-roto e taea te whakahou, nō reira kāore e hiahiatia he waea, ā, ka taea te whakanoho ki ngā wāhi katoa. Ka whakamahia e ngā rama pūngao rā he pūtau pūngao rā iti hei "whakakī-toto" i te pākahiko i ngā hāora awatea. Kātahi ka whakakahangia e tēnei pākahiko te waeine ina tō te rā.
Ngā Pūhiko Nikara-Katimu
Ko te nuinga o ngā rama hiko o te rā e whakamahi ana i ngā pākahiko nickel-cadmium rahi-AA ka taea te whakahou, me whakakapi i ia tau, i ia rua rānei tau. He pai ngā NiCads mō ngā whakamahinga rama hiko o waho nā te mea he pākahiko pakari, he nui te kaha o te pūngao, ā, he roa te ora.
Heoi, he tokomaha ngā kaihoko e aro nui ana ki te taiao e pai ake ana kia kaua e whakamahi i ēnei pākahiko, nā te mea he konganuku taumaha paitini te cadmium, ā, he tino whakahaeretia.
Ngā Pūhiko Nikara-Metara Wairiha
He rite ngā pākahiko nikara-whakarewa ki ngā NiCads, engari he nui ake te ngaohiko, ā, e toru ki te waru tau te roa o te ora. He haumaru ake hoki mō te taiao.
Heoi, ka pakaru pea ngā pākahiko NiMH ina tukuna ki te utunga maturuturu, ā, kāore e pai mō te whakamahi i roto i ētahi rama rā. Ki te whakamahi koe i ngā pākahiko NiMH, kia tino hangaia tō rama rā hei utu i a rātou.
Ngā Pūhiko Lithium-Ion
Kei te piki haere te rongonui o ngā pākahiko Li-ion, inā koa mō te hiko o te rā me ētahi atu tono matomato. E rua pea te matotoru o te pūngao i tō ngā NiCads, he iti noa te tiaki e hiahiatia ana, ā, he haumaru ake mō te taiao.
I te taha kino, he poto ake te roa o te ora o ēnei pākahiko i ngā pākahiko NiCad me NiMH, ā, he tairongo hoki ki ngā pāmahana tino rerekē. Heoi anō, ko ngā rangahau tonu mō tēnei momo pākahiko hou ka whakaiti, ka whakatau rānei i ēnei raruraru.
Wā tuku: 22-Pepuere-2022