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View Full Version : Battery Packs rydinhigh 12-16-2003, 06:53 PM I recently purchased a R/C truck. It came with a 9.6v battery pack which dies after 15 mins of use. Is there any battery packs that have a longer life? Also I was looking at some and they gave a mah rating, I was wondering what this is for. Thanks, Mike RiverRat 12-22-2003, 12:44 AM milli-amp hour: The milli-amp hour is the standard unit of storage capacity for a cell. It tells you how many amps (milli-amps) the battery will supply for an hour. The higher the number the longer it will last for a given load. Just picture this.... How long will two D-cells last powering a light vs. two AAA cells powering the same light. bates 12-22-2003, 01:32 AM While that is true, a higher milli-amp hour battery will last longer, it will give less performance. A lower mah battery will give off its power quicker and basically make the car go faster. Just something to consider. rydinhigh 12-22-2003, 03:52 PM very very intersting. The battery I have now is 800 mAH. I found a 1000 mAH a 1200 mAH and a 1800 mAH battery. Which one would be the best for all around use? RiverRat 12-22-2003, 03:59 PM I don't get the part that a high milliamp battery will give less performance. The only drawback of a larger MAh battery would be size, cost and weight. I not really into r/c cars so maybe I'm missing something. Bottomlesspit 12-23-2003, 12:03 PM I spend a lot of time with these batteries with my radio controlled airplanes. Some with cars and boats with my son. I use the higher milliamp capacity batteries for longer runtimes. Like a 1800 vs 1200...a good bit longer storage capacity. The thing about weight is the type of cells used to make the battery pack, along with number of cells. More cells = more volts within a specific pack. AA size, C size, sub-C size etc. As for power...look towards the voltage rating. Common car basic volts with a 6cell pack is usually around 7.2V and an upgrade to 8.4V (7 cell pack) makes a big difference. The 8.4V is where the run time starts to suffer. I get better performance, but not near the run time. There are TYPES of cells that are designed to give off their power at higher rates. SC, SCR, etc. bottom line: There are no universal rules to the battery game, and no one battery gives best performance. Try Nicads, Lithium, etc....Confusing to say the least. :eek: Just some of my observations. Ken |