Quote:
Originally Posted by TimV
I drive an Volvo V60 plug in Hybrid with 50km of EV range. I have a dailey commute of 60km. So i need something like 15km of extra range. I was thinking of adding an 48V batterypack in the trunck. This pack needs an dc to dc converter to add power in the high voltage pack. This pack is charged slightly lower then 400V. And empty around 290-300V. What dc booster are you using? I drive 2 times 35 to 40 minuten. So an 1 to 1.5 kW booster should do the trick.
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Hi,
I don't use a dc-dc between the stock Nimh pack and my A123 pack. They are // connected.
But between my A123 pack and a LG pack I use a meanwell hlg dc-dc converter.
My A123 pack is in "high voltage" around 230V DC, my LG pack is around 200V DC and the converter is between them.
Until the LG pack is at a lower voltage then the A123 pack the current is defined by the dc-dc converter. If not the amperage can be highter and not controlled.
If you want to use lower voltage, 48V for exemple, there have been an
isolated converter that convert the 48VDC to 240VDC adjustable (Other voltage have exist for the Prius 1 for example)
But this system had thermal problem, overheating.