Help with basic bulk charging question

[nastypoker4]

I currently use 4x 5000mah 6S turnigy packs to power my bike. I have them wired up in 12S2P configuration. Until today I used a 4x6S turnigy charger (100W each channel) to charge my batteries but I fried it by connecting something incorrectly. The other issue was I had to disassemble my battery packs to charge every day which was a pain. So I want to charge @ 48v ideally with one connector and then save balancing for when it is actually required.

My question is, can I just buy a 220VAC > 48VDC power supply and hook it up and set the output voltage of the PS to 49.5v and just leave it? What is the simplest and ideally cheap way to do this? I see lots of threads on using things like Meanwell power supplies but then how do you go from the PS to the batteries? Direct?

Also, all these Meanwell fakes such as
http://www.ebay.co.uk/itm/DC48V-350...531?pt=LH_DefaultDomain_3&hash=item1c54ee9683
Are they likely to have a copy of the board internally so you could still do the "R33" Mod?

 

[motomech]

http://www.hobbypartz.com/75p-1220-charger.html

I wrote this the other day
<<<Unfortunately, the Thunder 1220 is out of stock.
That happens every several months and takes a couple of months to get back in stock, There is always rumors that it will no longer be produced, but it always returns.
One of the neat things about the 1220, is that you run it with a super inexspensive Internet server power supply. I got mine for $15 on Ebay a few years ago.
Icecube57 used to have some too.
They are non-insulated, but since a single one will do the job(400 to 500 Watts), all that needs to be done is to wrap it with some insulation(I used foam and duct tape)and make a jumper wire to turn it on.

One of the things I don't like with the 1220, is the quality of the paraboards and balance leads. It all works, but they are stiff and hard to connect and dis-connect.>>>

I use Battery Medics to check and balance the cells(rarely needed).

http://www.hobbyking.com/hobbyking/store/__10328__HobbyKing_8482_Battery_Medic_System_2S_6S_.html

Just plug in the the charger, no splitting my 12S/2P pack;

 

[wesnewell]

Or get a 12s bms and charger.
https://bmsbattery.com/bmspcm/330-smart-bms-513-cells-in-series-bms-pcm.html#/discharge_current-20_40a
https://bmsbattery.com/ebike-charger-ev-charger/711-s240-charger-built-in-active-pfc-charger.html