View Full Version : batt number
dadoo1
11-16-2009, 11:52 AM
I am new to RC. I have a slash with 8.4v 3000 batt. If I change to a 8.4v 5000 batt, what does that mean ? Will it go faster or run longer or what?
Thanks.
chops1sc
11-16-2009, 11:55 AM
Longer run time. The 3000 and 5000 is the capacity of the cells.
Houps
11-16-2009, 04:56 PM
Think of it like a fuel tank..... the smaller the number the smaller the tank. For ex; an 1800 has less run time (civic gas tank) where a 5000 has longer run time (excursion gas tank, lol)
boostedg60rado
11-16-2009, 05:03 PM
you could also get a couple more mph due to it having more energy to store. I use lipo and havent used nihm in a long time but but i believe the larger the pack you will have more to pull from also. In turn giving you a bit more speed.
But longer rntimes for sure.
rccar306109
11-16-2009, 09:40 PM
Think of it like a fuel tank..... the smaller the number the smaller the tank. For ex; an 1800 has less run time (civic gas tank) where a 5000 has longer run time (excursion gas tank, lol)
yeah lol, but with the milage you get with the civic it probbally wouldnt make a difference:lol: :lol: :lol:
Back on topic: i always try to get at least a 5000mah if i'm buying a pack. The 8.4 you see is the "V"oltage the higher the voltage the faster it goes. i think the xl5 can handle 9.6V
good luck!
dadoo1
11-16-2009, 11:13 PM
thanks for the information
BrianG
11-16-2009, 11:20 PM
you could also get a couple more mph due to it having more energy to store. I use lipo and havent used nihm in a long time but but i believe the larger the pack you will have more to pull from also. In turn giving you a bit more speed.
But longer rntimes for sure.
Exactly. A higher capacity (mah) pack of the same C rating will most likely drop less voltage under load. Since motor rpm is a function of kv and voltage, this translates to a faster speed. However, this might be offset by the extra weight of a larger capacity battery. Either way, the difference is minimal if both packs use quality cells rated truly.
Another benefit could be a cooler battery. Since a higher capacity battery has a higher discharge rating (assuming the same C rating), it won't be running as hard, so it stays cooler.
But really, the biggest benefit is runtime. If you get 15 minutes on 3Ah, expect somewhere around 25 minutes with a 5Ah battery.
Powered by vBulletin® Version 4.1.5 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.