Having already gone through two sets of powered salt and pepper mills, I spent quite a lot of time researching a more viable option, settling on the ones I am reviewing here.The first set (given as a gift to me by my brother) before these seemed okay until they broke after around three years, but my main complaint until they broke was that they were hard to reload and because they dispensed out of the bottom, requiring the little plastic covers they came with on the bottom of the grinders to keep salt and pepper from getting all over the table.Also, the design of this particular grinder was rather fragile.Link - https://www.amazon.com/Electric-Salt-Pepper-Grinder-Set/dp/B07QNVRRFVThat flaw is inherent with all of the similar salt and pepper mills out that grind out of the bottom instead of the top, so I bought thes that grind out of the top - https://www.amazon.com/gp/product/B07RZTJ5MKI liked that the new set couldn't be easier to refill and appeared more sturdy, but I soon found that there were new problems, namely a poorly designed battery compartment with an upside down battery compartment (spring on the positive battery terminal?) and the fact that salt and pepper would get into the battery compartment, corroding the contacts for the batteries and damaging the other electronic components inside.This second set of grinders didn't even last as long as the first ones, so I spent quite a bit of time trying to locate an alternative without the flaws of the first two sets, finally settling on these.The new ones at first look like the previous grinders, grinding out of the top, but the new ones don't have replaceable batteries, instead having rechargeable lithium-ion batteries sealed off completely from the grinder components, which means we now can't get corrosion from salt and pepper getting into the battery compartment that plagued the last set.The last set of grinders also would often start grinding if accidentally tipped over (they were rather top heavy), which activated the grinder to run salt and pepper all over the table, but this new set won't do that because they have a small button on the side that must be pressed first to allow the automatic grinder to operate before use.These new grinders are also quite a bit lighter on top, so nowhere near as prone to tipping over as both of the previous grinders.I charged both grinders up right after I bought them fourteen months ago, and we use them daily, yet I still haven't had to recharge them, so the batteries clearly have excellent capacity, and they use an ordinary micro-USB cable to charge, so no proprietary charging cables are a real point in its favor.It should also be mentioned that these grinders also have a nice LED light, so perfect for candlelight dinners.These grinders are exactly what I was looking for.UPDATE 14JAN23:I've now had these grinders for nearly a year and a half and I have zero complaints.They really hold a charge well (they lasted well over a year before I recharged them), they grind salt and pepper perfectly, they're durable, and (my biggest concern) they do not have a problem with salt and pepper getting into the electronics.These have exceeded my expectations, and I have already bought a second set for myself, and I won't hesitate to buy these for any of my friends or family.Highly recommended.