ironclad battery

例句：

1. 1. This new model of ironclad battery has a longer lifespan than its predecessors.
   这款新型铁甲电池的寿命比前一代长。
2. 2.The engineers carefully tested the ironclad battery to ensure its safety and reliability.
   工程师们仔细测试了铁甲电池，以确保其安全和可靠性。
3. 3. Due to the high cost of maintenance, many companies are reluctant to invest in ironclad batteries.
   由于维护成本高，许多公司都不愿意投资于铁甲电池。