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This exists, there are 3.7v lithium rechargeable cells with buck converters tacked on so they act like 1.5v alkalynes. They still have poor performance because
by edrxty 3y ago
This exists, there are 3.7v lithium rechargeable cells with buck converters tacked on so they act like 1.5v alkalynes. They still have poor performance because the converters aren't perfectly efficient and rechargeables don't have the density of primary cells, but they do work
- tzs 3y agoThe ones I've seen claim to be "constant voltage", which I took to mean that they are always 1.5 V right up to the point that they need recharging. That would make the battery level indicator in many devices report 100% right up until the end, which would be pretty annoying in a lot of cases. What I want is a variable buck converter (if the real cells are lithium) or variable buck-boost (if the real cells are NiMH) that adjusts the output so that a battery level indicator that expects alkaline batteries will show the correct battery level.