Lithium Iron Phosphate Battery Charge Voltage

Sometimes I even forget the I have to charge this battery. It's an Info-Lithium Battery with 6600mAh at 7.2V and it have a very long life!

Compact but powerful with Lithium battery that last 500+ full power per charge

This lithium battery is very reliable.

I think this Battery is even better than the original version from Canon because the voltage is higher and it can hold more of a charge than the original Canon Battery ! It's a great buy at a great price ! Truly !

Love this charger as it seems to charge my batteries faster then the one that comes with my camera. It will charge one or both battery at the same time. It will charge two different type/voltage of batteries at the same time! The adaptors for different batteries need to be purchase separately but they are not expensive. The unit will also check your battery voltage and how much charge if left in the battery in percentage. Clear LED display. Display always stay on but not so bright that it will annoy you at night. - highly recommended item.

We use from 15 to 20 of these radios about 8 hours each day. They hold up very well and are the most reliable of all the Midland radios that we have used over the years for our business. In my initial review I mentioned that the battery had a short life. Well in fact, the battery is great. The problem is that the radio charges the batter very rapidly. I never timed it but it must be within an hour or so. What happens with this rapid charge the charging current is high enough to cause a high resistance spot on the battery. Because of this high resistance the radio circuit thinks that the battery is charged because it has reached the battery full charge voltage. However, this voltage consists of the battery voltage PLUS the voltage drop across the high resistance spot on the battery. As a result the battery never reaches a full charge. If you are experiencing this problem remove the battery and look at the negative end and you will see a small spot that is a high resistance burn due to the fast charging. As a test I would wipe off this spot and the radio would charge the battery completely. Solution: I purchased some conductive past at our local hardware store, which I applied to each end of the batter. This has eliminated the problem. I have had no undercharges since I began using this paste with all of our radios.

Arrived with full battery charge, self-diagnostics report steady voltage on AC, have not had a power outage since installing the briefcase sized device. Slight chemical odor even after a week or so. At 20W (basic HP AIO desktop with a laptop CPU) predicts 6 hours (360 min) of runtime.

I have two of these chargers. They are well built and powerful. However, that power comes with a string attached - if you want to rapidly charge a Mavic 3 battery the input voltage has to be greater than produced by a typical full charged 12 volt battery. DJI tells us this - stating that we should use the charger only with the car running. However, the specifications state that the input voltage needs to be 12.7 - 16 volts DC. Which led me to assume the 540 amp hour 12 volt battery bank in our expedition truck, which delivers 12.8 - 12.9 volts when fully charged would be sufficient. That is not the case - I need to have somewhere between 13.1 and 14,1 volts minimum (closer to 14.1 I suspect) for the rapid charger to work with an Mavic 3 battery. I can work with that as long as I charge during the day with solar input raising the voltage of the battery bank or when the truck's engine is running. This charger will work fine charging a Mavic Mini 2 battery bank with the supply at 12.8 (perhaps lower as well - I've not tried that). It might also charge the Mavic 3 battery via the USB 2 - USB 3 outlet but at 10 watts I'd presume that would considerably slower than the 65 watts possible with USB 3 - USB 3 outlet. I have not tried my car chargers with large portable power banks like those from Goal Zero or Jackery. I suspect the same restraints would apply - rapid USB 3 to USB 3 of a Mavic 3 battery will require solar or other supplemental input. Again - not a problem if you plan for that. I've given the charger 5 stars because it is great and works well as long as one respects the design parameters.

Having this as a spare battery was great - maintained its charge as well as the original Pentax lithium ion battery and let me continue with my photography.

The Watson EN-EL9A Lithium-Ion Battery Pack (7.4V, 1000mAh) is a dependable battery at a great price point. So far, these are as dependable as the OEM batteries I've used. They charge quickly with a long-lasting charge cycle. Excellent functionality, value, and price. Highly recommended!