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New nickel-iron battery charges in seconds, survives 12,000 cycles
(interestingengineering.com)
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this post was submitted on 13 Feb 2026
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Lead batteries are also cheap.
And mine take ~30 minutes to charge. This person may want to replace their batteries.
Charge time depends on the UPS. The cheap consumer grade ones usually have a float charger that takes forever.
They're also trustworthy, reliable technology. Why change what isn't broken?
It's brand new, I'm reading directly from the instructions, if it only takes 30min to change they should say that and it's not by design. It's a CP1500PFCLCD
It makes sense to me to have low power chargers on a UPS. Once your power comes back online, it needs to deliver enough juice to power everything plugged into the UPS plus the battery charger. A fast charger would be more likely to trip a breaker.