Re: High frequency chargers
They’re electronic, and as with any other electronics, you should use a dedicated surge suppressor to help protect any new style HF charger from power surges.
Most are not repairable, at least not by the average DIY. There is always a trade-off for higher efficiency. Most HF chargers cost less up front than a transformer charger.
Will it last as long? Maybe, maybe not. Some are beginning to show problems after only 5-6 years.
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