• Spare battery for extending the operating time
• Can be used as a second battery
• Rechargeable battery can be changed quickly and easily directly on site – without the need for tools
• Extend the operating time of your instruments and use the Li-ion rechargeable battery as a second battery

With the spare battery, you can extend the operating time of your instruments or always have a second battery ready to hand. The Li-ion rechargeable battery can be used in compatible thermal imagers from Testo. You can easily replace the rechargeable battery directly on site without requiring any tools. The spare battery can be charged using a desktop charging station (please order separately).