2 2s=1 4s ?
09-25-2010, 04:38 PM
#31
It will, but if its two 2S 5000mah in parallel, thats the same as a 10,000mah 2S lipo. The 1C charge rate would be 10amps and that charger you linked has a max rate of 7amps. It'll take extra time to complete a charge. It will still be faster than charging them separately, but not as fast as charging at 1C.
Thats the right series harness for running them as a 4S, but I can't tell anything about the balance harness, so I don't know if thats going to work or not.
You can run them separate, theres nothing about charging in parallel (or series for that matter) that forces you to run them together. Most plane guys that fly alot charge in parallel, then run the lipos separately in diff planes. Just be aware when you put them together to charge, they should be at similar voltage.
Thats the right series harness for running them as a 4S, but I can't tell anything about the balance harness, so I don't know if thats going to work or not.
You can run them separate, theres nothing about charging in parallel (or series for that matter) that forces you to run them together. Most plane guys that fly alot charge in parallel, then run the lipos separately in diff planes. Just be aware when you put them together to charge, they should be at similar voltage.
09-25-2010, 04:42 PM
#32
It will, but if its two 2S 5000mah in parallel, thats the same as a 10,000mah 2S lipo. The 1C charge rate would be 10amps and that charger you linked has a max rate of 7amps. It'll take extra time to complete a charge. It will still be faster than charging them separately, but not as fast as charging at 1C.
Thats the right series harness for running them as a 4S, but I can't tell anything about the balance harness, so I don't know if thats going to work or not.
You can run them separate, theres nothing about charging in parallel (or series for that matter) that forces you to run them together. Most plane guys that fly alot charge in parallel, then run the lipos separately in diff planes. Just be aware when you put them together to charge, they should be at similar voltage.
Thats the right series harness for running them as a 4S, but I can't tell anything about the balance harness, so I don't know if thats going to work or not.
You can run them separate, theres nothing about charging in parallel (or series for that matter) that forces you to run them together. Most plane guys that fly alot charge in parallel, then run the lipos separately in diff planes. Just be aware when you put them together to charge, they should be at similar voltage.
also can i charge them in seriess like i would be doing the 2 2s for the 1 4s but then run them separate?
09-25-2010, 04:59 PM
#33
OK, so you'd be charging in series so a pair of 2S 5000mah would be the same as a 4S 5000mah. The 1C rate would be 5amps and the charger would have enough power to deliver the charge (16.8v x 5a = 84watts) with power to spare.
This is what concerns me about that serial balance connector - I can't see the wires and its not as simple as you might think - if you can tell its wired the way shown in this pic, you're prob good. If not, tis poss you can short the two lipos when you connect them with that adapter -
http://scriptasylum.com/rc_speed/_pi...s_wmain.gif~14
I'm not sure what that adapter is for, was is sold specifically for charging 2 2S lipos in series?
This is what concerns me about that serial balance connector - I can't see the wires and its not as simple as you might think - if you can tell its wired the way shown in this pic, you're prob good. If not, tis poss you can short the two lipos when you connect them with that adapter -
http://scriptasylum.com/rc_speed/_pi...s_wmain.gif~14
I'm not sure what that adapter is for, was is sold specifically for charging 2 2S lipos in series?
09-25-2010, 05:31 PM
#36
The iCharger 106B+ can be had for just over $100 and is a very capable charger IMO, rated for 250W. I've been very pleased with mine.
09-25-2010, 05:40 PM
#39
Yes, you can charge the 2 2S lipos as a single 4S pack then run them separately. Not sure about the NiMH, but I want to say no you can't, someone else will confirm or deny.
09-25-2010, 06:20 PM
#41
I bought a 10amp 300w charger from hobbyking for $40 and been using it all season. works fine
09-25-2010, 07:22 PM
#43
its 200w. All sold out though.
I buy everything I need from hobbyking, I refuse to pay for name brand items with ridiculous mark up
http://hobbyking.com/hobbyking/store...r_&_discharger
http://hobbyking.com/hobbyking/store...Charger_w/_acc.
I buy everything I need from hobbyking, I refuse to pay for name brand items with ridiculous mark up
http://hobbyking.com/hobbyking/store...r_&_discharger
http://hobbyking.com/hobbyking/store...Charger_w/_acc.
09-25-2010, 07:47 PM
#44
i am getting all of my batteries and lipo sacks from there. $3 for a sack that others want like $30 for...i dont think so. im getting a 4s 30c 5800, 2 2s saddle packs 25c 5700 and 4 2s 20c 5000 and 4 lipo sacks for less then $200. i think thats a knock out deal. then i can use my charger that i already have.
09-26-2010, 09:27 AM
#45
Food for thought:
If you plan on running indoors only 5800mah packs are overkill. The heats and mains are only 5 minutes. You're packing more weight around the track than you need to. Save a buck and look at packs at or under 5000mah or trade Mah for a higher C rating...specially if you're running mod. Seriously, on 4500 you can probably run both heats and the main on one pack with a 15-20 minute charge before the main. The 4s 5000+ packs are great for outdoor 8th e-buggies though. Not sure what your fleet looks like.
The risk of shorting is reduced if you plug the first batt into the negative side of the harness first. Study the harness and try to wrap your head around the circuit...try to see which plug will be on the negative side and use that pigtail first.
Added you to AIM.
If you plan on running indoors only 5800mah packs are overkill. The heats and mains are only 5 minutes. You're packing more weight around the track than you need to. Save a buck and look at packs at or under 5000mah or trade Mah for a higher C rating...specially if you're running mod. Seriously, on 4500 you can probably run both heats and the main on one pack with a 15-20 minute charge before the main. The 4s 5000+ packs are great for outdoor 8th e-buggies though. Not sure what your fleet looks like.
The risk of shorting is reduced if you plug the first batt into the negative side of the harness first. Study the harness and try to wrap your head around the circuit...try to see which plug will be on the negative side and use that pigtail first.
Added you to AIM.
Last edited by makaluch; 09-26-2010 at 09:45 AM.