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Old 10-07-2013
mattr mattr is offline
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Join Date: Mar 2011
Location: Sweden
Posts: 1,838
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Quote:
Originally Posted by badgio View Post
So do you think the larger pack will be worth having once I upgrade to better electrics or is it too heavy to be any good for racing?
TBH, for racing, lighter batteries are generally better, as you can then play with ballast and weight distribution better than with a big battery.
You will have to work out if the slight improvement (barely noticeable) in motor performance is offset by dragging another 50-75(?) grams of battery round the track. (most of these high C rating batteries can deliver far more current than the motor needs/can use anyway.) I've found that the big batteries don't help me. But the small ones do. Also, the 4200mAh packs i have, i can run for over 15 minutes before cut off (3.2v/cell) race heats/qualifiers are usually 5 or 7 minutes. The longer you run, the hotter your electrics get too (10 minutes on the 4wd takes the motor to the thick end of 100 degrees C, 5 or 7 minutes takes it to about 75-85. Same thing applies to 2wd, just not as hot!.)

As for the charger situation this is the charger i have: (two of them) http://hobbyking.com/hobbyking/store...cessories.html
Which is the same as the one you linked to, just with different branding and colours. I also use a 16A PSU,
http://hobbyking.com/hobbyking/store...40V_220W_.html
which with half an hour of soldering and a bit of inventiveness (and a handful of electrical bits, wire, bullet connectors etc) gives you a nice solid charging set up, which is fairly easy to swap and change as your needs do.
i.e. racing two classes, get another charger and connect it to the same PSU so you can charge two batteries at once, move to 8th scale, get the 8 amp version or a 10A charger.... and so on. Anything breaks down, you can get most of the bits (PSU or charger) within 48 hours from the UK. Rather than having to get a complete mains charger.

Hope that helps.
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