Re: [Elecraft] KX2/KX3 DC Charging

2018-11-16 Thread ktalbott
craft@mailman.qth.net Subject: Re: [Elecraft] KX2/KX3 DC Charging There's not a whole lot of info out there, as well as not many making DC - DC chargers that will work on LiPo or LiFePO4's. I went down this road a couple months back looking for something to run my KX2 mobile out in the bo

Re: [Elecraft] KX2/KX3 DC Charging

2018-11-16 Thread Fred Jensen
www.revolectrix.com Fred ["Skip"] K6DGW On 11/16/2018 2:40 PM, Todd wrote: There's not a whole lot of info out there, as well as not many making DC - DC chargers that will work on LiPo or LiFePO4's. I went down this road a couple months back looking for something to run my KX2 mobile out in th

Re: [Elecraft] KX2/KX3 DC Charging

2018-11-16 Thread Todd
There's not a whole lot of info out there, as well as not many making DC - DC chargers that will work on LiPo or LiFePO4's. I went down this road a couple months back looking for something to run my KX2 mobile out in the boonies and still be able to charge without use of a geny. I stumbled upon

Re: [Elecraft] KX2/KX3 DC Charging

2018-11-16 Thread Dennis Moore
Thanks Scott. Makes sense. Dennis NJ6G On 11/16/2018 10:47, K9MA wrote: Hi Dennis, You're missing the charge controller. Li-Ion batteries are very fussy about the way they are charged. While it would be more efficient to run the charger directly on 12 Volts, such a charger for the Elecraft

Re: [Elecraft] KX2/KX3 DC Charging

2018-11-16 Thread K9MA
Hi Dennis, You're missing the charge controller. Li-Ion batteries are very fussy about the way they are charged. While it would be more efficient to run the charger directly on 12 Volts, such a charger for the Elecraft batteries is not available, as far as I know. Even if it were, it would pr

Re: [Elecraft] KX2/KX3 DC Charging

2018-11-16 Thread Dennis Moore
So you're taking your 12v source (let's say it's 13.8v), adding an inverter to make 120v, then plugging in a charger to bring it back down to 13.8v. I'm fairly new to the KX3 game, but it seems like I must be missing something here. 73, Dennis NJ6G On 11/16/2018 09:58, K9MA wrote: One solu

[Elecraft] KX2/KX3 DC Charging

2018-11-16 Thread K9MA
One solution to charging the Li-Ion batteries from a 12 V DC source is to use a small inverter. One I've found which works well is the Samlex PST-120-12. It's a small "pure sine wave" inverter, rated 120 W, costing about $120. It seems to work just fine with the KXBC2 charger, and should work j