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Battery PSU's and related


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#1 Tomslin

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Posted 12 April 2018 - 03:10 PM

 Continued from here:

 

http://jplay.eu/foru...-femto/?p=42927

 

 

Upsss... that's a shorter autonomy than I expected, with my life po I can reach 30 + plus hours non stop music and else.  So the only thing I can do is try the 30 amp each, that will be a total o 60 amp per SSD, dangerous... there is no 60 amp switch in the business either, just bought an on - of military switch that is rated at 35 amp max.

 

Regarding Pauls clock SSD maybe he is talking 3 amp consumption for the start, like a pc when you start it draws a lot of amps then it drops a lot the power consumption.

Hard to say exactly how long discharging time will be. Depends on many factors, including how “nice” you want to be against your batteries. But with these 30Ah cells that I linked to earlier, shouldn't be a problem to achieve a day-long listening time. If you want to :)

 

What should you have a 60 or a 35A switch for? It's very important that the switch have good contact characteristics (very low contact resistance), but it’s both wrong and completely unnecessary to dimension it for the entire battery capacity.

 

Something important I don’t think I mentioned before: Batteries should always be disconnected from the device before charging. Switching off or disconnect plus is enough, minus or earth should always be grounded at one single point, ie, star grounding, in the computer chassis. Preferably all other minus should also be connected to this point.


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AudioPC: Intel S1200V3RPS ǀǀ Intel Xeon E3-1230LV3 ǀǀ Apacer AP2GITETLQ1K3 2GB DDR3 1066 ECC DIMM ǀǀ PPA OCXO SATA to CF Adapter with Apacer AP-CF016GRANS-ETNRC ǀǀ

JCAT USB Card FEMTO ǀǀ JCAT Reference SATA Cable ǀǀ JCAT Net Card FEMTO ControlPC: Intel S1200KPR ǀǀ Intel Xeon E3-1265L V2 ǀǀ Apacer 75.A83EE.G000C 2GB DDR3 1066 ECC DIMM ǀǀ  

PPA SATA to CF Adapter with Apacer AP-CF016GRAFS-NR (for Windows) ǀǀ PPA SATA to CF Adapter with Advantech SQF-P10S2-16G-ATT (for WAV-files) ǀǀ JCAT SATA Cable ǀǀ JCAT Net Card FEMTO ǀǀ

JCAT Signature LAN Cable Software: Windows Server 2016 Standard ǀǀ Total Commander 9.12 ǀǀ JPLAY 6.2 ǀǀ Audiophile Optimizer 2.20b6 ǀǀ MinimServer 0.8.5.2 ǀǀ Upplay 1.2.11

Audio equipment: Berkeley Audio Design Alpha USB ǀǀ JCAT Reference USB Cable ǀǀ PPA red AES/EBU XLR Cable ǀǀ

Harmony Design Pre 906 with 24-steps ELMA and inbuilt DA900 D/A Converter and Ear909 Headphone Amplifier ǀǀ Moon Audio Silver Dragon V3 with Furutech Rhodium XLR ǀǀ Sennheiser HD800


#2 screenmusic

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Posted 13 April 2018 - 02:29 AM

 Continued from here:

 

http://jplay.eu/foru...-femto/?p=42927

 

 

Hard to say exactly how long discharging time will be. Depends on many factors, including how “nice” you want to be against your batteries. But with these 30Ah cells that I linked to earlier, shouldn't be a problem to achieve a day-long listening time. If you want to :)

 

What should you have a 60 or a 35A switch for? It's very important that the switch have good contact characteristics (very low contact resistance), but it’s both wrong and completely unnecessary to dimension it for the entire battery capacity.

 

Something important I don’t think I mentioned before: Batteries should always be disconnected from the device before charging. Switching off or disconnect plus is enough, minus or earth should always be grounded at one single point, ie, star grounding, in the computer chassis. Preferably all other minus should also be connected to this point.

 

Thanks, Tomas, it was my ignorance about the switch I don't need that much od amperes anyway I have a military grade 35 amperes with silver contact that will do the job, and the two packs of 30amp each one I think is enough for at least 2 days of constant music, now is a matter to find a charger for that battery.



#3 kiskaprince

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Posted 13 April 2018 - 10:53 PM

Thanks, Tomas, it was my ignorance about the switch I don't need that much od amperes anyway I have a military grade 35 amperes with silver contact that will do the job, and the two packs of 30amp each one I think is enough for at least 2 days of constant music, now is a matter to find a charger for that battery.

?



#4 Tomslin

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Posted 15 April 2018 - 11:21 AM

Thanks, Tomas, it was my ignorance about the switch I don't need that much od amperes anyway I have a military grade 35 amperes with silver contact that will do the job, and the two packs of 30amp each one I think is enough for at least 2 days of constant music, now is a matter to find a charger for that battery.

I would recommend to first try with two of these cells which will give you 30Ah and see if you will be satisfied with SQ and capacity. Later you can double it with two more cells for to have 60Ah, if needs arise, and also invest for a suitable chargers.


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AudioPC: Intel S1200V3RPS ǀǀ Intel Xeon E3-1230LV3 ǀǀ Apacer AP2GITETLQ1K3 2GB DDR3 1066 ECC DIMM ǀǀ PPA OCXO SATA to CF Adapter with Apacer AP-CF016GRANS-ETNRC ǀǀ

JCAT USB Card FEMTO ǀǀ JCAT Reference SATA Cable ǀǀ JCAT Net Card FEMTO ControlPC: Intel S1200KPR ǀǀ Intel Xeon E3-1265L V2 ǀǀ Apacer 75.A83EE.G000C 2GB DDR3 1066 ECC DIMM ǀǀ  

PPA SATA to CF Adapter with Apacer AP-CF016GRAFS-NR (for Windows) ǀǀ PPA SATA to CF Adapter with Advantech SQF-P10S2-16G-ATT (for WAV-files) ǀǀ JCAT SATA Cable ǀǀ JCAT Net Card FEMTO ǀǀ

JCAT Signature LAN Cable Software: Windows Server 2016 Standard ǀǀ Total Commander 9.12 ǀǀ JPLAY 6.2 ǀǀ Audiophile Optimizer 2.20b6 ǀǀ MinimServer 0.8.5.2 ǀǀ Upplay 1.2.11

Audio equipment: Berkeley Audio Design Alpha USB ǀǀ JCAT Reference USB Cable ǀǀ PPA red AES/EBU XLR Cable ǀǀ

Harmony Design Pre 906 with 24-steps ELMA and inbuilt DA900 D/A Converter and Ear909 Headphone Amplifier ǀǀ Moon Audio Silver Dragon V3 with Furutech Rhodium XLR ǀǀ Sennheiser HD800


#5 screenmusic

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Posted 15 April 2018 - 01:33 PM

I would recommend to first try with two of these cells which will give you 30Ah and see if you will be satisfied with SQ and capacity. Later you can double it with two more cells for to have 60Ah, if needs arise, and also invest for a suitable chargers.

yes, those are a great option, big size though, how do you charge them? it seems there is no charger on that site. And do you think they are approved to travel by airplane? 



#6 Tomslin

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Posted 15 April 2018 - 02:19 PM

I don’t use them, they are too large for my needs. 

 

Any power supply that provide stabilized 2.7V and with sufficient current capacity, can be used for charging. Such ones will work :)

 

Is no problem to ship by air :) 


AudioPC: Intel S1200V3RPS ǀǀ Intel Xeon E3-1230LV3 ǀǀ Apacer AP2GITETLQ1K3 2GB DDR3 1066 ECC DIMM ǀǀ PPA OCXO SATA to CF Adapter with Apacer AP-CF016GRANS-ETNRC ǀǀ

JCAT USB Card FEMTO ǀǀ JCAT Reference SATA Cable ǀǀ JCAT Net Card FEMTO ControlPC: Intel S1200KPR ǀǀ Intel Xeon E3-1265L V2 ǀǀ Apacer 75.A83EE.G000C 2GB DDR3 1066 ECC DIMM ǀǀ  

PPA SATA to CF Adapter with Apacer AP-CF016GRAFS-NR (for Windows) ǀǀ PPA SATA to CF Adapter with Advantech SQF-P10S2-16G-ATT (for WAV-files) ǀǀ JCAT SATA Cable ǀǀ JCAT Net Card FEMTO ǀǀ

JCAT Signature LAN Cable Software: Windows Server 2016 Standard ǀǀ Total Commander 9.12 ǀǀ JPLAY 6.2 ǀǀ Audiophile Optimizer 2.20b6 ǀǀ MinimServer 0.8.5.2 ǀǀ Upplay 1.2.11

Audio equipment: Berkeley Audio Design Alpha USB ǀǀ JCAT Reference USB Cable ǀǀ PPA red AES/EBU XLR Cable ǀǀ

Harmony Design Pre 906 with 24-steps ELMA and inbuilt DA900 D/A Converter and Ear909 Headphone Amplifier ǀǀ Moon Audio Silver Dragon V3 with Furutech Rhodium XLR ǀǀ Sennheiser HD800


#7 screenmusic

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Posted 22 April 2018 - 01:21 PM

I don’t use them, they are too large for my needs. 

 

Any power supply that provide stabilized 2.7V and with sufficient current capacity, can be used for charging. Such ones will work :)

 

Is no problem to ship by air :) 

 

Dear Tomslin, I've tried to order 2 small LTO cells of battery 25 us each one but see they charge more than 70 us for shipping even Europe..is that right?



#8 Tomslin

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Posted 22 April 2018 - 07:06 PM

Best to check with them :)


AudioPC: Intel S1200V3RPS ǀǀ Intel Xeon E3-1230LV3 ǀǀ Apacer AP2GITETLQ1K3 2GB DDR3 1066 ECC DIMM ǀǀ PPA OCXO SATA to CF Adapter with Apacer AP-CF016GRANS-ETNRC ǀǀ

JCAT USB Card FEMTO ǀǀ JCAT Reference SATA Cable ǀǀ JCAT Net Card FEMTO ControlPC: Intel S1200KPR ǀǀ Intel Xeon E3-1265L V2 ǀǀ Apacer 75.A83EE.G000C 2GB DDR3 1066 ECC DIMM ǀǀ  

PPA SATA to CF Adapter with Apacer AP-CF016GRAFS-NR (for Windows) ǀǀ PPA SATA to CF Adapter with Advantech SQF-P10S2-16G-ATT (for WAV-files) ǀǀ JCAT SATA Cable ǀǀ JCAT Net Card FEMTO ǀǀ

JCAT Signature LAN Cable Software: Windows Server 2016 Standard ǀǀ Total Commander 9.12 ǀǀ JPLAY 6.2 ǀǀ Audiophile Optimizer 2.20b6 ǀǀ MinimServer 0.8.5.2 ǀǀ Upplay 1.2.11

Audio equipment: Berkeley Audio Design Alpha USB ǀǀ JCAT Reference USB Cable ǀǀ PPA red AES/EBU XLR Cable ǀǀ

Harmony Design Pre 906 with 24-steps ELMA and inbuilt DA900 D/A Converter and Ear909 Headphone Amplifier ǀǀ Moon Audio Silver Dragon V3 with Furutech Rhodium XLR ǀǀ Sennheiser HD800





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