Charge + Flying Time Dropping

[BaRoN30s]

looking for a bit of advice...

been flying my 450 clone now for just over 12 months & been getting well over 6 Min's +

BUT just before Xmas i noticed that my head speed is dropping after only a few Min's. prob 4 Min's tops. and also my on-board batt checker is bleeping

when charging them back up ive noticed the times & what its putting back into them are also dropping. its gone from 60 Min's charge & about 1800mah to around 40 Min's charge & 1300mah...

all 3 battery's have had around 40 cycles each...

I have also tried a Brand New battery that my dad bought for his 450 pro to see if it was my battery's at fault & only got around the same 4 Min's out of it before the on-board checker started to bleep & head started to slow down.

has anyone ever had this problem
thanks BaRoN.

[glen_j]

i'd say the packs are tired and on their way out, most likely time to look for some new ones

[BaRoN30s]

i was thinking the same thing until i tried this. below.

quote from my 1st post.

l
I have also tried a Brand New battery that my dad bought for his 450 pro to see if it was my battery's at fault & only got around the same 4 Min's out of it before the on-board checker started to bleep & head started to slow down.

all 2200mAh using a Turnigy Accucel-6 to charge with. at 2.2.amps

[glen_j]

are you keeping the packs warm when you go flying as cold packs will set off the low voltage alarm. cold weather is quite harsh on lipo performace

[BaRoN30s]

the packs are kept & charged & stored indoors at room temp until i go flying. cant keep them warm whilst at the field tho..

[Nick B]

Yea you can,cool box and hot water bottle

[Downdraft]

Yea you can,cool box and hot water bottle

Must say temp plays a big part in lipo performance, a couple of weeks ago I took my 600e out and it was awfull the headspeed dropped off real quick and after 3 or so minutes was becoming hard to fly.
I took it out weekend just gone and kept a lipo in my jacket to see if it made any difference, you'd be amazed.

I need to buy some cozy toes for my Lipo's.