![]() Now, in an industry that is constantly pushing toward ever lower voltages to reduce power consumption, this is weird! Especially for a gadget that needs to go a long time without a battery change. The battery pack consists of two series-connected Tadiran lithium primary cells (AA size), with a nominal 7.2V output. High-temperature overlays and even double-stick tape exist, but it’s pretty fancy stuff. This and the overlay sticker on the front suggest this device is intended for enforcing low temperatures. A piece of foamy double-stick tape helps hold and cushion the battery pack where it sits against the PCB. The battery pack is Zip-tied to the plastic “cage”, although not to the PCB or any part of the case. ![]() ![]() That piece of double-stick tape really ties the room together. ![]()
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