9V carbon-zink battery for GBX1 This battery will keep energy-hungry devices, such as smoke alarms, portable microphones and electronic toys, supplied with long-lasting, dependable power. Suitable for use in a wide range of compatible high-drain gadgets, the 9V cell in this single-piece packet is disposable for practicality. Made using an alkaline manganese dioxide chemistry, it's mercury and cadmium-free to make it more environmentally-friendly and exceptionally safe to use. Thanks to its low rate of self-discharge, the 9V Battery also boasts a long shelf life, so you can keep it in your store cupboard for up to seven years.

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