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Hi Guys,
Let me share my experience.
Having a lot of battery powered equipment in my collection, transistor radios, micro-TVs & test gear, non-leaking power packs have always been a worry for me.
10 years ago, i switched all to Ni-Mh rechargeables. I was very happy, no leakage, but as they loose 80% of the initial charge after 3 months, most demos ended up with swapping batteries at demo time.
Since a couple of years i have swapped 1st generation Ni-Mh batteries for the newer 2nd generation sold as pre-charged and which keep their charge up to 80% of nominal after one year even if unused. These are a Godsend for the collector. Also, more importantly, none have leaked (so far).
I now differentiate according to use:
Collector items: 2nd generation Ni-Mh
Heavy duty frequent use such as LED flashlights: highest A/h rating classic Ni-Mh.
Very long term "forget when changed" items (remote controls, test gear): Lithium.
Best Regards
jhalphen
Paris/France
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