Can I use your nickel-metal hydride batteries in old-fashioned power tools? 镍氢电池能否用于老式电动工具？

Yes. Nickel - metal hydride batteries are suitable for high - current discharge and have a suitable voltage, thus often used in old - style power tools to provide stable power.
（能。镍氢电池电压适配，且适于大电流放电，常被用于老式电动工具，能提供稳定动力。）