IN STOCK AND READY TO SHIP. PLEASE SPECIFY THE CONNECTOR TYPE AND WHAT RC IT WILL BE FOR SO I CAN WIRE FOR BEST FIT. THIS IS A BRAND NEW 11.1V (3 CELL) 50C 60C BURST 4000MAH LIPO BATTERY THAT FITS ALL TRAXXAS 1/10 SCALE VXL RC'S. IT WILL ALSO FIT ALL OTHER 1/10 SCALE BATTERY TRAYS. THE BIGGEST MISUNDERSTANDING IN LIPO BATTERIES FOR MOST PEOPLE ARE "C" RATING VERS MAH VERS AMPS. I WILL TRY TO QUICKLY EXPLAIN. MANY PEOPLE GO OUT AND SPEND 125.00+ DOLLARS FOR A 4000MAH+ 11.1V 20C BATTERY AND WONDER WHY THERE LOW VOLTAGE CUTOFF TURNS ON AFTER A COUPLE OF MINUTES OR THEY DON'T HAVE THE 70+ MPH THAT THEY EXPECTED WITH HIGH SPEED GEARING. THE ANSWER IS VERY SIMPLE; THEY ARE ONLY PUSHING ABOUT 80 AMPS OR LESS WITH THERE 20C 4000MAH BATTERY THAT THEY JUST PAID 125.00 DOLLARS FOR. TO GET THE AMP RATING OF A BATTERY YOU MULTIPLY THE "MAH" NUMBER BY "C" RATING. AN EXAMPLE WOULD BE 4000 X 50= 200 OR 200 AMPS CONTINUOUS. THE OTHER BIGGEST PROBLEM WITH HIGH DOLLAR 20C-35C HIGH MAH BATTERIES IS THAT MOST ARE VERY OVER RATED. I HAVE TESTED MANY SO CALLED 20C-35C BURST BATTERIES TO ONLY PERFORM AT ABOUT 14C-18C. ANOTHER PROBLEM WITH LOW C RATED LIPO BATTERIES IS THAT THE AVAILABLE MAH CAPACITY WILL DISCHARGE FASTER THEN A HIGH C RATED LIPO AS THERE IS A GREATER OVERALL LOAD ON THE BATTERY AND IT CAN NOT DELIVER THE NEEDED AMPS. THIS MAKES THE BATTERY, ESC, AND MOTOR HOT AND IS THE REASON MANY BRUSHLESS SYSTEMS FAIL. SO BASICALLY I'M SAYING THAT IF YOU ALREADY HAVE AN EXPENSIVE LIPO BATTERY THAT HITS LOW VOLTAGE CUT AFTER A FEW MINUTES OR YOU DON'T HAVE THE POWER THAT YOU THINK THAT YOU SHOULD HAVE THEN THIS LIPO BATTERY IS FOR YOU. WHEELIES ON DEMAND AT ANY SPEED. MY LIPO'S ARE TRIPLE SHRINK WRAPPED FOR DURABILITY. YOU WILL NOT BE DISAPPOINTED. ALL NEW LIPO BATTERIES ARE FULLY TESTED WITH A LIPO CELL ANALYZER/DISCHARGER FOR 5 CYCLES BEFORE SHIPPING. PLEASE ASK ANY QUESTIONS BEFORE BIDDING. PLEASE CHECK MY OTHER RC ITEMS. THANKS. PLEASE SPECIFY THE CONNECTOR TYPE YOU PERFER AT CHECKOUT. A FEW THINGS ABOUT LIPO BATTERIES AS I CAN NOT BE HELD RESPONSIBLE FOR MISUSE: MAX CHARGE RATE: 1C MAY CHARGE @ 4.0A MAX 1. Charging/Saftey IMPORTANT! Until you are willing to follow all saftey precautions, DO NOT use lithium batteries. If your a type of person that prefers to push the limits of products, or be haphazard about following saftey requirements. Lithium technology is not for you. Read on to find out why. Lithium cells must be charged very differently than NiCad or NiMH. They require a special charger specifically designed to charge lithium cells. In general any charger that can charge lithium ion can charge lithium polymer, assuming that the cell count is correct. You must NEVER charge lithium cells with a NiCad or NiMH only battery charger. This is dangerous. Charging cells is the most hazardous part of using lithium batteries. EXTREME care must be taken when charging them. It is important to set your charger to the correct voltage or cell count. Failure to do this can cause the battery to spew violent flames. There have been many fires directly caused by lithium batteries. PLEASE BE RESPONSIBLE when charging lithium batteries. Here are a few MANDATORY guidelines for charging/using LiPos (Lithium Polymer Batteries). 1. Use only a charger approved for lithium batteries. The charger may be designed for Li-Ion or Li-Poly. Both batteries are charged in exactly the same. 2. Make certain that the correct cell count is set on your charger. Watch the charger very closely for the first few minutes to ensure that the correct cell count continues to be displayed. If you don't know how to do that, get a charger that you do know how or don't charge the batteries. 3. Use the Taps. Before you charge a new Lithium pack, check the voltage of each cell individually. Then do this after every tenth cycle there after. This is absolutely critical in that an unbalanced pack can explode while charging even if the correct cell count is chosen. If the cells are not within 0.5 volts of each other then charge each cell individually to 4.2 volts so that they are all equal. Taps are provided on most new lithium packs. Taps give you the ability to check individual cell voltages and charge one cell at a time. Make sure and get the appropriate connector to go into your taps. Don't try to stick you volt meter probes in the taps to measure voltage. They could slip and short your cells. Don't try to charge more than one cell at a time from the taps. Unless you have an isolated ground charging system, you'll short your batteries out. Refer to your individual cell maker for tap pin-outs. 4. NEVER charge the batteries unattended. This is the number one reason for houses and cars being burned to a crisp by lithium fires. 5. Use a safe surface to charge your batteries on so that if they burst into flame no damage will occur. Vented fire safes, pyrex dishes with sand in the bottom, fireplaces, plant pots, are all good options. 6. DO NOT CHARGE AT MORE THAN 1C unless specifically authorized by the pack vendor. I have personally had a fire in my home because of violating this rule. Todays highest discharge batteries can supposedly be safely charged at greater than 1C, however so far in all cases doing so shortens the life of the pack. Better to buy 3 packs than to try to charge 1 pack 3 times quickly. This may change in the future but 1C is still the recommended charge rate. 7. DO NOT puncture the cell, ever. If a cell balloons quickly place it in a fire safe place, especially if you were charging it when it ballooned. After you have let the cell sit in the fire safe place for at least 2 hours. Discharge the cell/pack slowly. This can be done by wiring a flashlight bulb of appropriate voltage (higher is voltage is ok, lower voltage is no) up to your batteries connector type and attaching the bulb to the battery. Wait until the light is completely off, then throw the battery away. 8. If you crash with your lithium cells they may be damaged such that they are shorted inside. The cells may look just fine. If you crash in ANY way carefully remove the battery pack from the RC and watch it carefully for at least the next 20 min. Several fires have been caused by damaged cells being thrown in the car and then the cells catch fire later and destroys the car completely. 9. Charge your batteries in a open ventilated area. If a battery does rupture or explode hazardous fumes and material will spew from the battery. THIS IS THE SHORT LIST. PLEASE FULLY UNDERSTAND LIPO BATTERIES BEFORE USING.
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  • Item #: 4000mah 11.1v 3 cell lipo
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Price $64.99