Jeti LiIon RX batteries
08-08-2021, 11:58 AM
#53
Received my 3s2p 2600A battery pack from Jeti in the Czech republic. It only weighs 10 ounces, which is light for a 35+lb jet. I also checked amps during all phases of running on this SW220B turbine and the highest amps observed were only 5 amps, and that's only during start-up. Average consumption is only around 2.5 amps. This Li-ion should do the trick nicely!
Lots of guys I am in contact with have all started to run Pulse Batteries. This company is owned by the same guy who has several other RC companies we are all familiar with and they seem to be performing very well. A lot of us got push here because the lights on our PNP models will not work on less than two cell LiPO voltages.
Last edited by Zeeb; 08-08-2021 at 12:01 PM.
08-08-2021, 12:40 PM
#54
My Feedback: (28)
Well if you don't have an issue with too high a voltage like a KingTech ECU? The nominal voltage listed on the label indicates a LiPO, not just an Li-Ion, or more precisely, an LiFE which would show a nominal voltage a chunk under what's on that battery label.
Lots of guys I am in contact with have all started to run Pulse Batteries. This company is owned by the same guy who has several other RC companies we are all familiar with and they seem to be performing very well. A lot of us got push here because the lights on our PNP models will not work on less than two cell LiPO voltages.
Lots of guys I am in contact with have all started to run Pulse Batteries. This company is owned by the same guy who has several other RC companies we are all familiar with and they seem to be performing very well. A lot of us got push here because the lights on our PNP models will not work on less than two cell LiPO voltages.
08-08-2021, 12:43 PM
#55
My Feedback: (1)
I have lost faith in flat pack lipos for receiver duty. The Jeti packs are made up of 18650 batteries. I think the cylindrical batteries are superior to the flat packs.
I've just had brand new flat batteries fail. A 2S suddenly becomes a 1s. Or the resistance one cell gets to 5x that of its companion cell. I've had them fail in flight more than one time.
I am experimenting with Samsung 40T 21700 cells. They are 3500mah and can sustain 35amps. I'm soldering them up my self and it costs about $25 a pack.
This guy flies his EFDs with the 40T cells, check it out.
https://www.youtube.com/channel/UCAk...6qAirLJs6CAhsQ
I've just had brand new flat batteries fail. A 2S suddenly becomes a 1s. Or the resistance one cell gets to 5x that of its companion cell. I've had them fail in flight more than one time.
I am experimenting with Samsung 40T 21700 cells. They are 3500mah and can sustain 35amps. I'm soldering them up my self and it costs about $25 a pack.
This guy flies his EFDs with the 40T cells, check it out.
https://www.youtube.com/channel/UCAk...6qAirLJs6CAhsQ
08-09-2021, 04:28 AM
#56
My Feedback: (53)
I have lost faith in flat pack lipos for receiver duty. The Jeti packs are made up of 18650 batteries. I think the cylindrical batteries are superior to the flat packs.
I've just had brand new flat batteries fail. A 2S suddenly becomes a 1s. Or the resistance one cell gets to 5x that of its companion cell. I've had them fail in flight more than one time.
I am experimenting with Samsung 40T 21700 cells. They are 3500mah and can sustain 35amps. I'm soldering them up my self and it costs about $25 a pack.
This guy flies his EFDs with the 40T cells, check it out.
https://www.youtube.com/channel/UCAk...6qAirLJs6CAhsQ
I've just had brand new flat batteries fail. A 2S suddenly becomes a 1s. Or the resistance one cell gets to 5x that of its companion cell. I've had them fail in flight more than one time.
I am experimenting with Samsung 40T 21700 cells. They are 3500mah and can sustain 35amps. I'm soldering them up my self and it costs about $25 a pack.
This guy flies his EFDs with the 40T cells, check it out.
https://www.youtube.com/channel/UCAk...6qAirLJs6CAhsQ
08-09-2021, 05:51 AM
#58
My Feedback: (53)
I also have no problems owning my mistakes…done plenty in the past…..
08-09-2021, 06:57 AM
#59
My Feedback: (1)
I get that and do follow the guidelines for charging and storage of LiPos.
My point is that flat pack batteries can and do suddenly fail in use. I've talked to other pilots with the same experience. My recent failure was from a battery that was charged one time.
Obviously, no one wants a receiver battery to fail in flight. Jeti transmitters use 18650 batteries, and my DS-24 has the original ones, from when the DS-24 was first sold in the USA. They have been trouble-free. Jeti did their homework. Their Rx packs must be the same.
(I had a Futaba 9CAP, that I bought in 2002 and left it in the garage unused until 2018. The batteries were still charged and working okay. I want more like that. I think the batteries were made by Panasonic.)
My point is that flat pack batteries can and do suddenly fail in use. I've talked to other pilots with the same experience. My recent failure was from a battery that was charged one time.
Obviously, no one wants a receiver battery to fail in flight. Jeti transmitters use 18650 batteries, and my DS-24 has the original ones, from when the DS-24 was first sold in the USA. They have been trouble-free. Jeti did their homework. Their Rx packs must be the same.
(I had a Futaba 9CAP, that I bought in 2002 and left it in the garage unused until 2018. The batteries were still charged and working okay. I want more like that. I think the batteries were made by Panasonic.)
08-09-2021, 07:09 AM
#60
My Feedback: (53)
I get that and do follow the guidelines for charging and storage of LiPos.
My point is that flat pack batteries can and do suddenly fail in use. I've talked to other pilots with the same experience. My recent failure was from a battery that was charged one time.
Obviously, no one wants a receiver battery to fail in flight. Jeti transmitters use 18650 batteries, and my DS-24 has the original ones, from when the DS-24 was first sold in the USA. They have been trouble-free. Jeti did their homework. Their Rx packs must be the same.
(I had a Futaba 9CAP, that I bought in 2002 and left it in the garage unused until 2018. The batteries were still charged and working okay. I want more like that. I think the batteries were made by Panasonic.)
My point is that flat pack batteries can and do suddenly fail in use. I've talked to other pilots with the same experience. My recent failure was from a battery that was charged one time.
Obviously, no one wants a receiver battery to fail in flight. Jeti transmitters use 18650 batteries, and my DS-24 has the original ones, from when the DS-24 was first sold in the USA. They have been trouble-free. Jeti did their homework. Their Rx packs must be the same.
(I had a Futaba 9CAP, that I bought in 2002 and left it in the garage unused until 2018. The batteries were still charged and working okay. I want more like that. I think the batteries were made by Panasonic.)
I changed my battery in my DC24 I got it in 2015....a little bigger, there was no problems...just preventive maintenance
08-09-2021, 07:21 AM
#61
My Feedback: (1)
I call flat packs ones that are like this:
https://rcbattery.com/liperior-2200m...xt60-plug.html
The Jeti packs like this, are made from a pair (or 4) 18650 battery cells. Which are cylindrical cells.
https://www.jetimodel.com/katalog/power-ion-rb-3100.htm
Cylindrical cells are made like jelly rolls, flat packs are like layer cakes. I think it is easier to produce cylindrical cells at high quality levels because there is more experience doing batteries that way, compared to flat packs. Think how long D-cells have been around.
https://rcbattery.com/liperior-2200m...xt60-plug.html
The Jeti packs like this, are made from a pair (or 4) 18650 battery cells. Which are cylindrical cells.
https://www.jetimodel.com/katalog/power-ion-rb-3100.htm
Cylindrical cells are made like jelly rolls, flat packs are like layer cakes. I think it is easier to produce cylindrical cells at high quality levels because there is more experience doing batteries that way, compared to flat packs. Think how long D-cells have been around.
Last edited by jvaliensi; 08-09-2021 at 07:27 AM.
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