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Powering KingTech engines with LiPo-battery

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Powering KingTech engines with LiPo-battery

Old 06-17-2021, 11:18 PM
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Kristola
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Lightbulb Powering KingTech engines with LiPo-battery

As I'm living in area, where outside temperatures are often hostile for life, using LiFe-battery is not really an option.
Been able to use LiPo or Li-Ion-batteries gives to you more freedom of choice.
I have made small device to solve that problem, and short video about it.

You find it from youtube using search "lipolife kristola".

I'm not able to attach link to the video, been too passive I think.


Old 06-18-2021, 01:12 AM
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Old 06-18-2021, 02:11 AM
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Kristola
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Oh... There it is
Thanks!
Old 06-18-2021, 04:24 AM
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Originally Posted by Kristola View Post
As I'm living in area, where outside temperatures are often hostile for life, using LiFe-battery is not really an option.
Been able to use LiPo or Li-Ion-batteries gives to you more freedom of choice.
I have made small device to solve that problem, and short video about it.

You find it from youtube using search "lipolife kristola".

I'm not able to attach link to the video, been too passive I think.
Which device did you make? a regulator??
Old 06-18-2021, 05:05 AM
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Yes, it is small regulator seen in the video.
It is designed to handle high current during the startup and cooling, though it is small device.
Old 06-18-2021, 05:12 AM
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Originally Posted by Kristola View Post
Yes, it is small regulator seen in the video.
It is designed to handle high current during the startup and cooling, though it is small device.
ok thanks
Old 06-18-2021, 09:37 AM
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Originally Posted by Kristola View Post
Yes, it is small regulator seen in the video.
It is designed to handle high current during the startup and cooling, though it is small device.
Where can you get a regulator like this?
Thanks
Old 06-18-2021, 10:56 AM
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Kristola
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From Ebay. Use "LiPo to LiFe regulator" as a search phrase.

I haven't posted enough to be able to add link here. There is also link to item in Ebay in video description.
Old 06-18-2021, 11:10 AM
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Originally Posted by Kristola View Post
From Ebay. Use "LiPo to LiFe regulator" as a search phrase.

I haven't posted enough to be able to add link here. There is also link to item in Ebay in video description.
$94 usd plus shipping…..wow I will just keep using Life….
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Old 06-18-2021, 11:21 AM
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$ exchange rate is unfortunate at now. Half the price of a good servo.
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Old 06-18-2021, 11:23 AM
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why_fly_high
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If the temp is too harsh for my LiFe batteries it is too harsh for me.
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Old 06-20-2021, 10:59 AM
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Originally Posted by Kristola View Post
$ exchange rate is unfortunate at now. Half the price of a good servo.
Not about the exchange rate..just too expensive, kingtech battery are even cheaper…..and work well, if it was like $50 I would probably try one but over $100 usd not going to happen but sound pretty cool none the less….
Old 06-20-2021, 12:59 PM
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Originally Posted by Kristola View Post
As I'm living in area, where outside temperatures are often hostile for life, using LiFe-battery is not really an option.
Been able to use LiPo or Li-Ion-batteries gives to you more freedom of choice.
I have made small device to solve that problem, and short video about it.

You find it from youtube using search "lipolife kristola".

I'm not able to attach link to the video, been too passive I think.
I am extremely curios in what kind of environment that you live in that is so inhospitable for Life but not for Lipo? I have flown in many different environments and have friends who still fly out in areas like 29 palms (Mojave Desert), vegas, and here in florida where on a summer day it can get well in the high 90's and breach the 100 mark easily. I use LiFe and A123 cells and have never had a problem, but am curious to hear your answer to see exactly where you are to see if I should be looking out for issues.

Patrick
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Old 06-20-2021, 01:10 PM
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Dansy
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From the ebay listing....he's from Finland......
Old 06-20-2021, 01:24 PM
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Default Temp issues

Thanks Dansy for clearing that up. I am still waiting to hear from him whether the temps he is complaining about are the cold or the heat. Being curious I googled hottest day in Finland and it returned 37.2 degrees Celsius (about 99 degrees in F) which here in Florida is a regular occurrence on a summer day and I have never had an issue with my LiFe batteries.

Patrick
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Old 06-20-2021, 01:53 PM
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Dansy
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Originally Posted by sirrom View Post
Thanks Dansy for clearing that up. I am still waiting to hear from him whether the temps he is complaining about are the cold or the heat. Being curious I googled hottest day in Finland and it returned 37.2 degrees Celsius (about 99 degrees in F) which here in Florida is a regular occurrence on a summer day and I have never had an issue with my LiFe batteries.

Patrick
‘Finland……more like a deep freeze then a hot weather LOL

Batteries have a lot more difficulty in cold weather, in fact to fly electric in the winter in the moderate winter we get here in Ontario….heating the pack first will provide a lot more power….
Old 06-21-2021, 12:30 AM
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Kristola
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Yes. Having these current temperatures (over 30 degrees Celsius), is rare in here and manifests no problem. When temperature drops near freezing, then problems start. We have short summer and most of us want to continue flying even winter.
People living in warmer climate have no problem with LiFe.

When we were flying icu ducted fan planes we sometimes had to warm up them using gas turbine engine exhaust, just to be able to start them
We even have a propane burner inside kinda tent contraption, keeping pilot warm while flying

I understand this seem alien for most of my fellow hobbyist.
Old 06-21-2021, 04:43 AM
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Interesting…i have been flying in both extremes for years with Life and no issues.
Old 06-21-2021, 05:51 AM
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That's great. No start problems?
We have experienced trouble if battery is not just charged and warm. Second start might be successful but not third anymore, and charging cold battery is not a good idea.

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