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RedDevil · 10-18-2015, 05:48 PM

While I'm happy with the BMS and chargers an such, the delivery part of the system leaves much to be desired.

Last time out I could not make the lamps light up. I suspected a bad contact, but could not find it.

This evening I took the lamps apart. These are 6 20 Watt 12 Volt G4 lamps in reflectors, 3 parallel pairs of them, so 24 Volt would see 120 Watt and 5 Ampere.
But it would never be 24 Volt as my pack is only around 120 Volt and the IMA system would never go below 100 Volt.
So unlike my 12V lamp shunts this would not burn through.

You guessed it by now

they DID burn through!

3 of the 6 lamps did burn out, and with just 2 spares this setup is grounded for now.

I could use something blunt like a mains heater as a shunt.
But I'd rather have a device that limits the current to a preset level.
I have been looking about but the world seems to avoid current limiting, or I'm lousy at googling it.
Any suggestions?

10-18-2015, 05:48 PM	#66 (permalink)
RedDevil Master EcoWalker Join Date: Dec 2012 Location: Nieuwegein, the Netherlands Posts: 3,999 Red Devil - '11 Honda Insight Elegance Team Honda 90 day: 53.59 mpg (US) Thanks: 1,714 Thanked 2,247 Times in 1,455 Posts	Shed some light(s) While I'm happy with the BMS and chargers an such, the delivery part of the system leaves much to be desired. Last time out I could not make the lamps light up. I suspected a bad contact, but could not find it. This evening I took the lamps apart. These are 6 20 Watt 12 Volt G4 lamps in reflectors, 3 parallel pairs of them, so 24 Volt would see 120 Watt and 5 Ampere. But it would never be 24 Volt as my pack is only around 120 Volt and the IMA system would never go below 100 Volt. So unlike my 12V lamp shunts this would not burn through. You guessed it by now they DID burn through! 3 of the 6 lamps did burn out, and with just 2 spares this setup is grounded for now. I could use something blunt like a mains heater as a shunt. But I'd rather have a device that limits the current to a preset level. I have been looking about but the world seems to avoid current limiting, or I'm lousy at googling it. Any suggestions? __________________ 2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut. lifetime FE over 0.2 Gmeter or 0.13 Mmile. For confirmation go to people just like you. For education go to people unlike yourself.