Trex 600 and FP 4900

[3dx]

Need some guidance guys- Did a 6min flight today,mostly lazy eights and hovering(too windy to risk FFF !!!)- put battery back on charge -(Thunderpower1010 and TP 210 inline balancer)- Total charge time was 1hr 58mins and 2197mah put into lipo-this was at 1.5C charge rate, Does this mean I can extend my flight time to maybe 9mins max?? The 6min flight only used 1/2 the pack's capacity and implys that I'am well under the 80% rule- PLEASE tell me if this is so!!...
Thanks,lenny..

[Ade_Law]

1hr 58mins sounds like a long time to me. hopefully ash will chime in.

Ade

[simon109]

Hi,

If you charged it at 1.5C it should of taken less than an hour, or do you mean you charged it at 1.5A?

If you are going by the 80% rule you could use about 3920mAh of a 4900mAh pack.

Simon.

[3dx]

Reason the charge takes so long is I was advised to charge at the slow rate for the first 10 charges(now done 5 ), First charge at 1C took over 3hrs !!- Since upped the charge rate to 1.5C and takes under 2hrs to fully cahrge..

I know I can up the charge rate so it can be done in 45mins but I don't want to kill the lipo's yet( first crash will do that )..

[simon109]

Hi,

Your not charging at 1C then, 1C charge would be charging a 4900mAh pack at 4.9A which would take a about 1hr if it was very flat.

Simon.

[3dx]

Just checked the TP1010- readout on screen says charge rate is 1.5C..

[simon109]

Are you sure it doesn't say C=1.5A

Simon.

[3dx]

KIN hell!!- you're right- it does say C=1.50A If THATS the case,what rate should I charge at that won't kill my cells and can I extend my flight time accordingly?

[simon109]

Charging them at 1C won't kill them at all, 4900mAh pack would be 4.9A and you won't be waiting hours for a pack, just take the first few flights easy on the packs and don't use more than 80% 3920mAh of the packs capacity and they will be fine.

Simon.

[3dx]

Thanks dude- forgot to mention I've actually got 6 lipo's for my 600 and TWO charging rigs of TP1010 and TP 240-long charge rates don't bother me !!!!

[mattie-lodge]

I charge mine at 1/2 C (2450mAh) when I'm at home and 1C (4900mAh) down the field

[ChrisB]

I agree with this,i never go over 1c just to help the lifespan a bit

[lloyd]

1hr 58mins sounds like a long time to me. hopefully ash will chime in.

Ade

I agree, keep it down to 1 hour flights at the most

[Nutz]

Wow Lloyd, you must have 1 big ass battery to be doing an hours flight!

[SRH990]

When I was 'running in' my 600 and batteries flights were gentle hovers and circuits and a 5 minute flight used 2000mAh out of the pack, since then I now get through 80% of the pack in around 5:30! As long as you are inside the 80% the length of the flight doesn't matter.