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another noob lipo charger question?

maydaverave

10 kW
Joined
Jan 13, 2009
Messages
542
I bought a barely used I-zip 500 scooter at a yard sale a while back for $50 with dead lead acid batteries. Its a 24v scooter and I am fixing it on the cheap for a friend and I would like to dip my toes in the lipo waters to get some experience for building a pack for my ebike.
I want to make this as user friendly as possible and range isn't much of an issue. I like the simplicity of the chargers which charge through the balace taps. Fast charging isn't important for this application. I would like to be able to leave the batteries permanately connected to the scooter and the user could simply disconnect a batter monitor hook the balance leads to a charger, charge, then reconnect battery monitor.
If I go with 22volts 5 amp hour could I just connect two 3s packs in series and charge them with two of these
http://hobbycity.com/hobbyking/store/uh_viewItem.asp?idProduct=6507&Product_Name=Turnigy_2-3_Cell_Lipoly_Balance/Charger
or these?
http://hobbycity.com/hobbyking/store/uh_viewItem.asp?idProduct=8247&Product_Name=Turnigy_2S_3S_Balance_Charger._Direct_110/240v_Input

Or if I go 22v 10 ah with four 3s packs could I just use one of these?
http://hobbycity.com/hobbyking/store/uh_viewItem.asp?idProduct=10708&Product_Name=Turnigy_X5_3S_5_port_Lithium_polymer_Battery_Charger

Ideally I would like to use one or two 6s packs. Are there any balance chargers which charge 6s packs through the balance connectors? Having never seen lipo set ups in the flesh I am unable to visualize what I need. I know once get my feet wet this will all be obvious but for now I am not real sure what I need. Any input will be appreciated, I would like to set up the easiest lipo solution possible thanks.
 
I'd be inclined to get an I max b6 AC charger and use a single 6s pack, or two or more 6s packs with both discharge and balance leads permanently paralelled.

If the controller could take 8s, then I'd be inclined to do that, and get an 8s charger. If you paralell two packs and charge with a 50 watt charger, it will be plenty slow.
 
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