EBL Rechargeable 9V Lithium Batteries, 5400mWh USB 9 Volt Li-ion Batteries Long-Lasting(2 Pack)

Charges quickly, I use them musical equipment lasts long

I purchased these to use in all of my smoke detectors in the house because I got tired of buying 9 volt batteries over and over again! And they work like a charm!I just hope I remember to get them when I move out of my apartment 🤣🤣🤣🤣

The media could not be loaded. Used to power a 6-volt LED controller that I adapted to a skate helmet to avoid collisions with bikes and scooters while inline skating outdoors. Previously used 9v alkalines that lasted a bit longer but with decreasing light output over time which I had to monitor. These maintain maximum brightness for about 2-4hrs of use (my typical workout) and then power stops requiring a battery change. Have been using daily for ~5 months now.In my application I modified a 6-volt LED controller to run at 9v to overdrive helmet mounted super-bright LEDs to get significantly more light. Downside is the controller continues to consume power when run at 9-volts even when turned-off (likely leakage paths running over-voltage), so if I forget to disconnect the EBL battery it becomes discharged overnight. That's not the battery's fault. If I disconnect the battery after each use I can routinely get 2 days use at 2-hrs per session out of each battery.

These seem to hold a charge well. I have to recharge them once a month.

I love the USB charging system.I use these batteries every day for several hours at a time in order to run a 9v pump. I am amazed how long these batteries last before I need to switch them out, and the charging time is very fast. I always have a spare and I am never concerned. I'll definitely be getting more of these. Also works great with solar powered charging units.

Muy buen producto de carga fácilmente y rápido

As the pictures show, they do not load test 5400 mWh.I followed their instructions. (they have added >60 years old is approved to use):Charged until light changed from red to green (instructions said blue).Discharged @ 0.1 amp. (100 milliamp) to 7.2v; load test resulted in, practically, identical results. 2436mWh. Tester ended test, not battery.Another 2 cycles.This time I used a USB multimeter to watch the charge. The battery will trickle after the light shows a full charge. I unplugged them when the the light changed.The multimeter shows it taking ~5500mWh of charge, but it does not come out.I even tried a 0.01amp pull that lasted overnight and while it did end when the battery shut off (instead of the load tester getting below 7.2v) 3236mWh is the best I've gotten; that was at 0.1 until 7.2v and then 0.05 for just a few more mWh.They are consistent and they have undervote protection.

very good deal