1.5 kw bulk charger

[christerljung]

Hi! I'm gonna build a bulkcharger for my 100volt gng middrive. For future upgrades i want the spec to be about 135 volt and 10 - 15 ampere.
What could i use?
Serial connected Power supplies from ebay?
Which ones has isolated output? (serial Connection possible)

 

[ian.mich]

Hi! I'm gonna build a bulkcharger for my 100volt gng middrive. For future upgrades i want the spec to be about 135 volt and 10 - 15 ampere.
What could i use?
Serial connected Power supplies from ebay?
Which ones has isolated output? (serial Connection possible)

GNG can take 150V? ok then. Use S-350 PSUs in series, can be found on ebay and aliesxpress for $40 each. What is your final charge voltage?

 

[briangv99]

I can highly recommend the TCCH Elcon chargers, heavy but very reliable
http://www.elconchargers.com/catalog/item/7344653/7638003.htm

 

[jonescg]

I'm with Brian. Don't waste your time with unregulated power supplies if you don't need to. You can get these from the factory in China with a questionable returns policy, or buy them from a supplier who actually follows the trade practices act. About $500 from memory, but they come with an enable signal which can be switched by your BMS if you have one.

They are a solid charger.

 

[ian.mich]

for $120 one can build a 150V 7A charger from 3X S-350-48 units, or spend $240 on 6X S-350-24 units for 150V 14A. I can source a quality 150V 10A charger shiped to your doorstep for less than BMS battery if you want that.

 

[jonescg]

And if you don't know how to build one, nor have the inclination to try, you have the option of buying one at a premium.

 

[christerljung]

Thanks guys!
I ended up with ordering thre of these:
http://www.aliexpress.com/item/36V-350W-dc-power-supply/356486694.html
Since i already have the methtek breakerBMS it will be a functional setup for 24S bulk-charging at 9amps.

 

[ian.mich]

Thanks guys!
I ended up with ordering thre of these:
http://www.aliexpress.com/item/36V-350W-dc-power-supply/356486694.html
Since i already have the methtek breakerBMS it will be a functional setup for 24S bulk-charging at 9amps.

Yep, perfect.