Batteries have become very機和 common in our lives, and the appli聽答cations of batteries suc綠音h as home appliances and automo高機biles are very wide. Batteries 月下play a very impor舊不tant role in our lives. We all know在妹 that batteries mus跳現t be replaced when they are 金物used up, and must not be一線 mixed with new and old ones.

Battery has been very c拍購ommon in our lives, and the appli會白cation range of南亮 batteries such as hom人錯e appliances and automobi湖腦les is very wide. B黃音atteries play a very important 慢這role in our lives. We all know tha放科t batteries must be re森妹placed when they are u舊技sed up, and must not be mixed with new 日答and old ones.

Since people do not know v務的ery much about the use 妹議of batteries, there will be mo內為re or less mistakes in the use of 影問batteries. For example, the old and 拿長new batteries are used in 慢文series together, but as eve技哥ryone knows, this approach wi劇煙ll shorten the service lif討農e of the new battery.

The new battery has higher terminal 的體voltage and low坐劇er internal resistanc我算e due to more chemical r藍秒eaction substances, while the old bat冷明tery has lower 木鐘terminal voltage and higher 鐘習internal resistance要很. Generally, the internal resistance 物坐of a 12V new battery is 0.015-0.018 o空紅hm, and the old battery The internal西間 resistance of the battery is more th看少an 0.085 ohm. If the old an用我d new batteries are 舞放used in series, th行匠en in the charging state, the charging 光鄉voltage at both 快街ends of the old battery w光錢ill be higher than the char間很ging voltage at both ends of 遠公the new battery. As a result, 事舊the new battery is not fully 南生charged, and the old battery has alr自不eady passed. In th門上e discharge state, because the cap討歌acity of the new battery 鐘報is larger than t窗你hat of the old battery, the result都坐 is that the old票年 battery is over-disc森場harged, and even the old batter吃資y is reversed, and the bat科得tery swells and cau亮計ses side effects. It w也好ill deplete the power船雜 of the new battery, 金你and it will also cause the volt員近age inside the appliance to be un那雪stable, and there is a放明lso the danger of overuse of t門紙he old battery.

The old and new batteries mus科自t not be mixed and used. M了市ixing and matching wil技刀l not only save elec你體tricity, but waste electricity, an個花d the result will not be wor村從th the loss.