Still-working 9V Lithium Varta Battery After 2 Years of Intense Use, UT33C Digital Multimeter Tests скачать в хорошем качестве

Still-working 9V Lithium Varta Battery After 2 Years of Intense Use, UT33C Digital Multimeter Tests

Even if heavily used, very good 9V batteries cand still work a couple of years and this example is relevant. Old generation zinc-carbon, "heavy duty", batteries had a short life while most alkaline ones had much improved durability and "Lithium" one are expensive but have high-end performance. The UNI-T 33C multimeter is featured, as usual, to give the reference evaluation for voltage and maximum short-circuit current delivery, showing quite well the battery's performance after 2 years. Some manufacturers have lithium batteries in their portfolio but they are not cost effective as it they are as expensive as 2-4 good batteries for a proportional lifetime improvement. Rechargeable NiMh batteries make much more sense and similarly priced Lithium 9V rechargeable batteries, albeit not from known brands, show good prospects at the same cost.