Lithium Polymer or LiPo batteries are a great new way of storing energy for portable devices from cell phones, home electronics to RC lipo packs used in cars, boats and flight. They’re great because they can store 350% (approximately) more energy than a typical NiCd/NiHm battery pack and weigh 10% – 20% less. They can also discharge much more current than a NiCd/NiHm battery and can be fully charged in about an hour.
More information on Li-po batteries:
1, The charge rate: The charge time depends on the amount of unused energy that is left in the battery, the available energy capacity (mah) that is left to fill, and how fast you charge the battery. 4.5 amps is the maximum rate that a lipo battery 4000mah battery should ever be charged at. A cheap 4500mAh will puff at a 4.5 amp charge, 4.3amps lower is much safer. Lower is safer, but too low waste time.
A 4500mah battery maximum charge rate is 4.5 amps, but it should be charged between 4.3amps and 2.2 amps.
A 1800mah battery maximum charge rate is 1.8 amps, but it should be charged between 1.6 amps and 0.9 amps.
The first number is max, the second number is -2 below max, and the third number is half max.
2, Amp draw problems: The motor and the load that is placed on it is what determine the amp draw from the ESC and the battery. Neither the ESC nor the battery should never restrict amp draw; if it does, you need a better one.
3, Motor Load: The dynamics of the aircraft deals with friction and momentum; it is information like the weight, Air flow obstructions and the aerodynamics of the air frame. Anytime you’re flying and you hear the motor working harder, it’s because the plane turned hard, the plane accelerated , the motor is WOT (wide open throttle), or the plane is climbing fast; these things all put more of a load on the motor.
Increasing the load on the motor creates more heat for the motor’s self-cooling to deal with. The more load, the more heat. The motor’s self-cooling can only dissipate so much heat. Anything beyond that point, the motor will overheat. During flight, When you have to control the aircraft in a certain way by doing less things that place an extra load on the motor, this is called “flight control management”. This is a great way to control the heat and keep the electronics from overheating.
4, Weight: A 35c 4500mah LiPo battery can weigh from 460 grams to 560grams depending on the brand and model number. When you look to buy a battery, weight should be one of the things you look at. A battery weight has a huge effect on the planes power to weight ratio, Two extra ounces will make a big difference in your planes performance.
1000mah – 141grams
1300mah – 176grams
1600mah – 195grams
1800mah – 216grams
2200mah – 225grams
Here Recommend Gens ACE Lipo Battery for you
Get superior performance from your remote-controlled truck, buggy, heli, jet, airplane or quad with Gens ACE 7.2V 5000mAh NiMH high-capacity, high-discharge rate battery. This battery has the same quality features you have come to depend on from genstattu.com: 12 AWG soft silicone wire leads with our patented High Current Universal Plug System, along with the power to handle even the toughest terrains. In addition, this battery includes plug adaptors to fit Deans, Traxxas, Tamiya and EC3 plug types.
Gens Ace is one of the top ranked battery corporations with deep research and manufacturing on NIMH, LI-PO, LI-FE by the effort of 200 professional engineers and technicians with 20 years exquisite battery technology. All batteries are tailored for various scales of the RC Models such as electronic cars, nitro cars, aero planes, vessels and also other models, toys, electric tools, electric bikes, electric autos, digital products etc.