Battery use questions

rsava

rsava

Member
I have purchased a number of batteries for my Syma X-5C 1 and UDI 818AHD (we have about 10 for each) and I have a few questions:

1. I am currently limiting the string of flights to 2 then resting the quad for about 10 mins. Can we run a few more runs before resting the quad? Or is 2 then rest (or pehaps even just rest in between each run) what we should be looking at.
2. I am looking to get a iMax B6 charger. Where is the best place to make sure I get "real" one, not a knockoff?
3. The UDI tells us when the battery is getting low (beeps) but the Syma does not. We are getting better at knowing when the Syma is getting low but are there any tricks? Or is it just gettg the feel for it?

Thanks for any info. Learning how to fly these things well is a challenge but definitely a blast.
 
rsava said:
I have purchased a number of batteries for my Syma X-5C 1 and UDI 818AHD (we have about 10 for each) and I have a few questions:

1. I am currently limiting the string of flights to 2 then resting the quad for about 10 mins. Can we run a few more runs before resting the quad? Or is 2 then rest (or pehaps even just rest in between each run) what we should be looking at.
2. I am looking to get a iMax B6 charger. Where is the best place to make sure I get "real" one, not a knockoff?
3. The UDI tells us when the battery is getting low (beeps) but the Syma does not. We are getting better at knowing when the Syma is getting low but are there any tricks? Or is it just gettg the feel for it?

Thanks for any info. Learning how to fly these things well is a challenge but definitely a blast.
Click to expand...
1. I use the 10/10 rule 10 minutes of flight, then 10 minutes of rest
2. http://www.hobbyking.com/hobbyking/...5A_Charger_Discharger_1_6_Cells_GENUINE_.html
3. You could time your flight and make a note of how long your flight is when your battery gets low, but it's a bit of a pain timing every flight. It's easier to get a low voltage alarm buzzer
http://www.hobbyking.com/hobbyking/...ing_8482_Lipoly_Low_Voltage_Alarm_2s_4s_.html
 
Thanks for the info, I appreciate it.

Being a complete newbie, how does the low voltage alarm get connected to the battery/quad?

It says "plugs into balanced lead" but I have no clue what that means.
 
On any battery over one cell, you will have to leads. One that supplies power, and one that you connect to your charger when charging your battery and keeps the cells balanced with each other. The buzzer plugs into the balance plug and when your battery gets to a certain voltage (usually 3.7 volts) it emits a very loud alarm telling you it's time to stop flying.
 
Ah, ok. Then these batteries only have the one cell. There is only one set of wires: one red and one black.

Thanks again.
 
rsava said:
2. I am looking to get a iMax B6 charger.
Click to expand...
Are the battery connectors the same? If so you'll need one of these so you can charge multiple batteries.
http://www.banggood.com/Wholesale-W...-Charging-Cable-For-3_7V-Battery-p-68437.html

It charges all them in parallel, so when you first plug in multiple batterries wait ~2 min before turning on the charger. That will equalize the voltages.

You should also get an inexpensive multimeter (~$10 or so is fine) so you can double check voltages and do other troubleshooting tasks. Get one that has an audible beep for continuity checking.
 
Thanks Jackson, will look at getting both of those items. I have a multi meter but does not have a beep.
 
Jackson said:
Are the battery connectors the same? If so you'll need one of these so you can charge multiple batteries.
http://www.banggood.com/Wholesale-W...-Charging-Cable-For-3_7V-Battery-p-68437.html

It charges all them in parallel, so when you first plug in multiple batterries wait ~2 min before turning on the charger. That will equalize the voltages.

You should also get an inexpensive multimeter (~$10 or so is fine) so you can double check voltages and do other troubleshooting tasks. Get one that has an audible beep for continuity checking.
Click to expand...
OK, I got my multimeter in. My voltages after charge are between 4.18-4.22. These are 1s 3.7v 720-800 mAh Lipo's. Is this good/bad? What other readings should look at?
 
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