Hixon 1.5V AAA Rechargeable Lithium Batteries,4-Pack 1100mWh Pre-Charged Triple AAA Li-ion Battery & 1H Ultra Fast Charger for Home and Office Device,1600 Cycles,Constant Output.

These are better than several other brands I have used and for the same or less money!

Batteries are effectively 730mA. Competiton is mostly 780mA. However, the real bargain is the charger. The charger is capable of 4 x 500mA. Subsequently the charge is individually adjusted, hence perfectly charged. Tested with a reliable USB Tester.

The batteries arrived undamaged and they all charged quickly. Each battery has a blue led hidden under the battery's positive pole, which flashes while the battery is charging. I like it.Cons: The battery's capacity is listed as "1100 Mwh" milliwatt hours, instead of the usual capacity standard, which is milliamp hours ("Mah"). Keep in mind that Watts = volts * amps and these lithium batteries deliver 1.5 volts, instead of the usual 1.2 volts for NiMH batteries. So if we convert 1100Mwh / 1.5 volts, we get a true capacity of 700mah. (A lot of aaa NiMH batteries have a 1100mah capacity).

Battery life is HORRIBLE. Regular Alkaline batteries last 4 times longer on a motion detector nightlight! Waste of time and money. Just like AAA’s.

They came quickly and the price was good compared to others. Having just received them I'm not sure yet what the life will be with these over time.

These come without USB slots for re-charging, so you need to have a charging unit for li-ion batteries. SInce I prefer a drop-in charger to using USB cables and have a couple of these chargers, I'm happy to find replacement batteries that come without a 4-way USB cable; I already have a lifetime supply of therm.Since I just started with these, I can't comment on durability, etc. If they turn out to be duds, I'll update the review.

I'm wondering if the internal voltage regulator is consuming power even when the battery is not being used. It seems to be losing charge sitting around.Another issue is that when used in a flashlight, the light is very bright as the battery is dumping lot of current into flashlight. but along with it, the battery is heating up quite a bit. Not sure if its the Li-ion battery heating up or the voltage regulator is getting very hot.I'm okay with having to recharge the battery more often but do wonder about the heat generation under heavy load.

The problem with most rechargeable cells (Ni-Cd, NiMH, etc.) is that they start out at around 1.25 Volts, which leaves many LED lights significantly dimmer than they should be - even from the outset.I have a headlamp that takes three AAA cells that I wear at night when walking our dogs. It doesn't have any dimming features or fancy DC-to-DC converters in it, but I like it because it's lightweight and comfortable on my head.LEDs are good about "graceful degradation" as battery voltage drops, diminishing their output as the batteries drop in voltage as they become exhausted, but without the right voltage to begin with, most LED lights will never be as bright as they're supposed to be. These 1.5 Volt rechargeable lithium cells solve that problem because they actually put out an honest 1.5 volts, so my headlamp stays nice and bright, from beginning to end.Even though they seem to provide a bit less warning than other rechargeable cells when they are about to become depleted, I'm happy to accept that trade-off.