Tam sim no, lub peev xwm ntawm cov roj ntsha lead-acid muaj cov txheej txheem sau npe hauv qab no, xws li C20, C10, C5, thiab C2, uas sawv cev rau qhov muaj peev xwm tau txais thaum tso tawm ntawm qhov tso tawm ntawm 20h, 10h, 5h, thiab 2h. Yog tias nws muaj peev xwm qis dua 20h tus nqi tawm, daim ntawv lo ...
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