DC-DC Converter Charging

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KDRYAN
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DC-DC Converter Charging

Post by KDRYAN »

Is there any reason I shouldn't wire my IOTA DLS-55 DC-DC converter with constant power connected from the main battery pack. I require 12 volt to support the BMS while charging the main battery pack, I am not running a seperate 12vdc charging system to charge the aux from the mains.
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coulomb
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DC-DC Converter Charging

Post by coulomb »

KDRYAN wrote: Is there any reason I shouldn't wire my IOTA DLS-55 DC-DC converter with constant power connected from the main battery pack. I require 12 volt to support the BMS while charging the main battery pack, I am not running a separate 12vdc charging system to charge the aux from the mains.

I read a poll about this recently. It was very roughly equally divided, with a slight majority switching their DC/DC, some running it continuously, and the minority not using a 12 V battery at all (and hence running the DC/DC all the time also).

So it's not unheard of. Personally, I'd switch the DC/DC, but that's just a preference. It has to be HV fused, of course.
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DC-DC Converter Charging

Post by lithbattboss »

coulomb wrote:
KDRYAN wrote:It was very roughly equally divided, with a slight majority switching their DC/DC, some running it continuously, and the minority not using a 12 V battery at all (and hence running the DC/DC all the time also).

So it's not unheard of. Personally, I'd switch the DC/DC, but that's just a preference. It has to be HV fused, of course.

...."the minority not using a 12V battery at all". I am surprised to hear this since under NCOP14 a separate auxiliary battery MUST be used. It is not permitted to just use a DC/DC converter supplied via the traction pack.
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coulomb
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DC-DC Converter Charging

Post by coulomb »

lithbattboss wrote: I am surprised to hear this since under NCOP14 a separate auxiliary battery MUST be used. It is not permitted to just use a DC/DC converter supplied via the traction pack.

This was likely on DIYelectriccar, with a predominantly American readership. The land of the free, and all that.
Nissan Leaf 2012 with new battery May 2019.
5650 W solar, 2xPIP-4048MS inverters, 16 kWh battery.
1.4 kW solar with 1.2 kW Latronics inverter and FIT.
160 W solar, 2.5 kWh 24 V battery for lights.
Patching PIP-4048/5048 inverter-chargers.
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lithbattboss
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DC-DC Converter Charging

Post by lithbattboss »

OK fair enough. But we are in Oz and not Obama Land so we need to go by the Oz regulations.
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KDRYAN
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DC-DC Converter Charging

Post by KDRYAN »

Thanks guys, my aux battery is in, but small (lawn mower) at least that part of the regs is covered.
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