Tuy nhiên, khi kích hoạt lại các tế bào, một cao hơn so với điện áp phí bình thường có thể được yêu cầu để chuyển đổi sulfite tinh thể lớn trở lại Chủ động nguồn nguyên liệu tốt. Phạt cảnh cáo: Khi sạc pin axít chì với hơn thế, hiện tại giới hạn phải được áp dụng khi pin đã bắt đầu thu hút đầy đủ hiện nay. Luôn luôn thiết lập các giới hạn hiện tại để thiết lập thực tế thấp nhất và quan sát điện áp pin và nhiệt độ trong suốt quá trình. Nếu pin. | battery life because the battery is kept at room temperature. Some models carry several size batteries to accommodate different user patterns. What then is the best battery for a laptop The choices are limited. The NiCd has virtually disappeared from the mobile computer scene and the NiMH is loosing steam paving the way for the Li-ion. Eventually very slim geometry will also demand thin batteries and this is possible with the prismatic Li-ion polymer. Besides providing reliable performance for general portable use the Li-ion battery also offers superior service for laptop users who must continually switch from fixed power to battery use as is the case for many sales people. Many biomedical and industrial applications follow this pattern also. Here is the reason why such use can be hard on some batteries On a nickel-based charging system unless smart the charger applies a full charge each time the portable device is connected to fixed power. In many cases the battery is already fully charged and the cells go almost immediately into overcharge. The battery heats up only to be detected by a sluggish thermal charge control which finally terminates the fast charge. Permanent capacity loss caused by overcharge and elevated temperature is the result. Among the nickel-based batteries NiMH is least capable of tolerating a recharge on top of a charge. Adding elevated ambient temperatures to the charging irregularities a NiMH battery can be made inoperable in as little as six months. In severe cases the NiMH is known to last only 2 to 3 months. For mixed battery and utility power use the Li-ion system is a better choice. If a fully charged Li-ion is placed on charge no charge current is applied. The battery only receives a recharge once the terminal voltage has dropped to a set threshold. Neither is there a concern if the device is connected to fixed power for long periods of time. No overcharge can occur and there is no memory to worry about. NiMH is the preferred choice for
