The chargers are a charge-only device. If you want to cycle (which I never do) you have to purchase another device. You have to get their super tester. Yes another device and another expense but well worth it. Once you try the Sirius charger you will experience how simple it is to use. It’s a set it and forget it operation. And the best part about it is it's a fast charge that does not harm the batteries. So, if you wanted to use it at the field to fast charge it will work there also. I just use them the morning before I go. I have mine plugged into a timed outlet. The timer goes on around 7 am and goes off around 9am. That’s two hours of charge time which with these chargers can do allot of battery. I usually pack the car around 8.30 am. This way I catch the planes on full charge and in the maintenance mode. (flashing lights) I want to know for sure the charger went on.
I have a large battery (1400nmh) in my 9C transmitter so I don't have to charge that every time I go to the field. There is a voltmeter on the transmitter so I can see when that battery is low. I use the Sirius for the planes all the time and on the transmitter when needed. The night before I decide which planes are coming to the field with me. I never take more than two planes. If I did I would also charge the remaining planes on the way to the field or at the field is needed.
The Sirius pro puts out 500mah per channel. The upgrade brings that to 1aph. Then there's the monster Plus which puts out 2aph but that one only does planes. It will not do a transmitter.
I have a plus and a plus upgrade. I use the upgraded one on a regular basis and keep the plus in my transmitter case for a field emergency (which always seems to be for someone else).
all my planes (40 size) have 1100+ mah batteries both Nmh and nicad. with thoes batteries I can fly all day ( ten flights often) without charging.
I purchased a super tester because the charger has reduced charging to set it and forget it. At the end and at the beginning of each season I do a super test on every battery I have in all my planes, the transmitter and any batteries on the shelf.. This way I know what I have coming out of a season and going into a new season.
Other than that I don't use the super tester unless I feel something isn't right with a particular battery.
I have to say that I did notice a longer hold on my transmitter ( 6X at the time )battery as soon as I switched to the Sirius charger.
If you like simple easy charging at the field or at home, this is the charger for you.
If you're a battery guru and you need to analyze your batteries every way possible every time you charge, this might not be the way for you.
The thing is there are so many people still using the supplied battery charger that came with their transmitter. I think that is crazy.
Often people forget that this hobby has nothing to do with the price of an item.
We pay any amount of dollar for the plane we want and then look to save on the gear inside or behind that plane...????????
I got into this hobby about 4 years ago and was fortunate enough to find this charger right off the supplied trainer charger. For me it’s simple when it comes to batteries because they are not my forte. This charger has never given me any trouble and has extended my battery life. It’s a great item.. and I highly recommend it to all.