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JadAl_87 · 12-19-2014, 08:07 AM

Guys,

Is it bad to make a preset that will charge the batteries quickly to storage voltage of 3.86?? using the preset with the PL8 takes almost 1 hour to storage charge 6 packs, I want to reduce this time.

any thoughts?

Gregor99 · 12-19-2014, 11:20 AM

Not an issue. There is a high power storage preset in the library. Preset #9 in the preset library. Save it over the top of your existing preset and set the charge current up to 40 amps.

Personally, I never charge UP to storage voltage unless I've over discharged the packs, or am putting them away for long term storage, like a year.

JadAl_87 · 12-19-2014, 02:18 PM

from weekend to weekend you are not keeping under storage? wouldn't that puff the packs?

Gregor99 · 12-19-2014, 02:31 PM

When I'm done flying, I just put them away. If they are charged at the end of the day, I'll discharge DOWN to storage. But I don't charge UP to storage. Typical cell voltage after a flight is 3.7v to 3.75v.

Leaving them fully charged in storage is bad for them.

JadAl_87 · 12-20-2014, 12:05 AM

ah ok i misread it the first time

... I also fly bats up to 3.7V/cell..it is not a problem for the battery to stay under this voltage for a week? maybe marginally better to UP storage charge them?

Hemant T · 12-20-2014, 12:14 AM

I always put them on storage charge even if i'm going to fly next weekend.
Always better!

Russell Harding · 12-20-2014, 12:20 AM

It isn't too much of a difference in cell damage to leave them at 20% charger rather than 50-60%... But it does help and the decreased charge time for the next weekend is nice.

Sent from my iPhone using Tapatalk

Gregor99 · 12-20-2014, 12:34 AM

Quote:

Originally Posted by JadAl_87

3.7V/cell..it is not a problem for the battery to stay under this voltage for a week? maybe marginally better to UP storage charge them?

Not at all. The main thing is you don't want the cells to self discharge below 3.0v during storage. The discharge rate is so slow it would take many years for pack starting at 3.7v to get to 3.0. At least of the cells are healthy.

But if you put a pack in storage at 3.7v for less than several years and discover one or more cells is below 3.0v, its likely due to in internal short. Time to retire the pack.

Gregor99 · 12-20-2014, 12:35 AM

Quote:

Originally Posted by Code3Medic

the decreased charge time for the next weekend is nice.

+1 Only valid reason to charge UP to storage (short term storage).

12-19-2014, 08:07 AM	#1 (permalink)
JadAl_87 Registered Users Join Date: Oct 2013	Fast storage charge?? Guys, Is it bad to make a preset that will charge the batteries quickly to storage voltage of 3.86?? using the preset with the PL8 takes almost 1 hour to storage charge 6 packs, I want to reduce this time. any thoughts? __________________ No helis! Jad.

12-19-2014, 11:20 AM	#2 (permalink)
Gregor99 Registered Users My HF Map location Join Date: Oct 2007	Not an issue. There is a high power storage preset in the library. Preset #9 in the preset library. Save it over the top of your existing preset and set the charge current up to 40 amps. Personally, I never charge UP to storage voltage unless I've over discharged the packs, or am putting them away for long term storage, like a year. __________________ Revolectrix Ambassador - Charger Specialist Revolectrix.com 10% discount for Batteries GCAM16

12-19-2014, 02:18 PM	#3 (permalink)
JadAl_87 Registered Users Thread Starter Join Date: Oct 2013	from weekend to weekend you are not keeping under storage? wouldn't that puff the packs? __________________ No helis! Jad.

12-19-2014, 02:31 PM	#4 (permalink)
Gregor99 Registered Users My HF Map location Join Date: Oct 2007	When I'm done flying, I just put them away. If they are charged at the end of the day, I'll discharge DOWN to storage. But I don't charge UP to storage. Typical cell voltage after a flight is 3.7v to 3.75v. Leaving them fully charged in storage is bad for them. __________________ Revolectrix Ambassador - Charger Specialist Revolectrix.com 10% discount for Batteries GCAM16

12-20-2014, 12:05 AM	#5 (permalink)
JadAl_87 Registered Users Thread Starter Join Date: Oct 2013	ah ok i misread it the first time ... I also fly bats up to 3.7V/cell..it is not a problem for the battery to stay under this voltage for a week? maybe marginally better to UP storage charge them? __________________ No helis! Jad.

12-20-2014, 12:14 AM	#6 (permalink)
Hemant T Registered Users Join Date: Mar 2013	I always put them on storage charge even if i'm going to fly next weekend. Always better! __________________ Currently Flying - Align 600DFC with Vbar, 450L DOMINATOR 6S with GPro, Walkera CB100 Ex-Models - TT Titan X50(Nitro), Raptor 30(Nitro), Mini Titan 325E Tx - Spektrum DX18

12-20-2014, 12:20 AM	#7 (permalink)
Russell Harding Registered Users Join Date: Jan 2013	It isn't too much of a difference in cell damage to leave them at 20% charger rather than 50-60%... But it does help and the decreased charge time for the next weekend is nice. Sent from my iPhone using Tapatalk __________________ Oxy 3 - MSH Mini Protos - MSH Protos Max 700 - Taranis Thanks to Oxy Heli and MSH-Direct.com Former Username: Code3Medic

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