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gboulton -> RE: What is the largest battery you can put on a blade 400 (4/2/2008 3:10:23 PM)
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I had occasion to try a fairly good sized battery on my B400 not long ago. I must admit, I've forgotten the capacity, but it was in the 2400-2500 range.
Without a doubt, it was too nose-heavy for my tastes. While the heli didn't seem to be "struggling" any, it definitely threw it far enough out of whack that I spent more time trimming than I did flying. It struck me that a few minutes extra flying over the course of, say, an hour, just wasn't worth the hassle. I'd wager anything in the 3000+ range would be "ridiculously" nose-heavy.
The other thing to keep in mind is what you'd be gaining. Look at it this way...you already have an 1800 and 2100. So, you're flying, say, 20 minutes out of every 60. (ballpark). You're going to buy another battery. Another 2100 is...what...$70-ish. A 3300mah pack is a good $90-$100 even on CBP.com and will buy you...what...maybe 5 more minutes?? So, for an extra $30 or so, you'll get 35 minutes of flying per hour, instead of 30?? No better return (in terms of dollars per minute) than buying yet ANOTHER 2100 for $70...and then you won't have the weight/balance issue to worry about.
I run a couple of 1800's and a 2100 myself, and provided I take a cooler along to cool the batts, I can get into a pretty nice little cycle of flying one, cooling one, and charging one that let's me fly for 10 minutes or so with 10-15 minute breaks in between. That seems to work out pretty well, imo.
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