这两款蓝牙血糖仪的一个缺陷就是他们没有可拆卸电池，必须定期充电。
A downside of these two Bluetooth meters is that they don't use removable batteries and must be recharged periodically.
老实讲，我宁愿湖要一个外置的常寿命电池液而不是一个需要换来换去的可拆卸电池。
Frankly, I'd rather have an internal battery with a great life instead of a removable one I need to swap.
大多数厂商解决这个问题的方法，是在可拆卸电池中尽量塞入更多的锂离子电池芯，让整部电脑变得更沉重。
Most computer makers deal with this by jamming as many lithium-ion cells as they can into a removable battery pack, adding bulk to the system.
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