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RC Glossary


New to the RC Hobbies? What does buggy, bulkhead, nitro mean in radio control car hobbies? Check out the glossary for remote control cars below.

LIPO - LiPo - LiPoly íV Lithium Polymer (Battery) --

John Goodenough (of Sony) introduced LiPo technology in 1996. LiPo batteries rely on a chemical reaction between lithium and a gelled polymer electrolyte to produce an electrical current. These batteries don't require a metal can like NiCad and NiMh cells, and are instead grouped together in 'plates' or 'sheets'. Instead of the gradual discharge curve of NiCad and NiMh batteries, LiPo's tend to hold a charge longer into the run, but drop off steeply at the end. They tend to offer a lower internal resistance than nickel based cells while retaining higher voltages during high amp draw. LiPo batteries offer a significant increase in voltage (with 3.7V nominal voltage per cell, and 4.2V per cell fully charged) and run time over NiCad and NiMh batteries, while weighing around 1/3 less. The downside is that they are more expensive and require a LiPo specific charger. To prevent damage to LiPo's, never let the cell voltage drop below 3V per cell, never charge them over 4.2V per cell, and always store the packs at 1/2 charge. When balancing LIPOs, try to keep them within 0.1v per cell. REFERENCE : 1S = 3.7V, 2S = 7.4V, 3S = 11.1V, 4S = 14.8V.
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