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Gens Ace Lithium-Polymer Battery Safe Guide Instructions

Lithium-polymer batteries offer a variety of significant advantages over NiCd, NiMH and Lipo batteries for use in R/C electric devices. It is very important to have a good understanding of the operating characteristics of LiPo batteries - especially how to charge and care for them safely. Always read the specifications printed on the battery’s label and this instruction sheet in their entirety prior to use. Failure to follow these instructions can quickly result in severe, permanent damage to the batteries and its surroundings and even start a FIRE!

WARNING! Lithium-polymer batteries (LiPo) are entirely different than Nicd and NiMH batteries and must be handled differently as well. Gens Ace Racing will not be held responsible for any and all incidental damages and bodily harm that may result from improper use of Gens Ace brand lithium-polymer batteries. In purchasing these products, the buyer/user agrees to bear all responsibilities of these risks and not hold Gens Ace, its distributors (owners and employees) and/or retailers responsible for any accidents, injury to persons, or property damage. If you do not agree with these conditions, please return the battery to the place of purchase.

Before and after every use of your LiPo battery, inspect all cells in the pack as much as possible to ensure no physical damage or swelling is evident. Such signs can often indicate a dangerous problem exists with the battery that could lead to failure.

Battery Voltages, Ratings & Applications

LiPo batteries can be assembled in many configurations. Packs are most commonly found with cells assembled in series, normally denoted with an “S”. For example, 1s lipo battery in series are often denoted as “3S”. Each LiPo cell has a nominal voltage rating of 3.7V (with a minimum recommended discharge voltage of 2.8V, and a maximum charge voltage of 4.20V). The more cells assembled in series, the higher the total voltage of the pack. But assembling in series does not affect the overall rated capacity of the pack as shown in the diagram on page 2.

Charging the Battery

IMPORTANT WARNINGS: Be sure to follow these important warning statements regarding the charging of LiPo batteries:



•NEVER charge a LiPo battery while it’s inside the model. A hot pack could ignite wood, foam, plastic, etc.

•NEVER charge LiPo batteries with a NiCd or NiMH peak charger!
ONLY use a charger specifically designed for LiPo batteries which can apply the “constant current /
constantvoltage” charge technique (cc/cv). MuchMore offers several LiPo compatible chargers ( which can be found at your local retailer.

•NEVER charge LiPo batteries at currents greater than the “1C” rating of the battery (“C” equals the rated capacity of the battery).

•NEVER allow LiPo cells to overheat at any time! Cells which exceed 140°F (60°C) during charge can and USUALLY WILL become damaged physically and possibly catch FIRE!! Always inspect a battery which has previously overheated and do not re-use if you suspect it has been damaged in any way.

•ALWAYS discontinue charging a LiPo immediately if at any time you witness smoke or see the battery starting to swell up. This may cause the battery to rupture and/or leak, and the reaction with air may cause the chemicals to ignite, resulting in fire. Disconnect the battery and leave it in a safe fireproof location for approximately 15 minutes.

•ALWAYS charge a LiPo battery in a fireproof location, which could be a container made of metal (such as an ammunition box), ceramic tile, or a bucket of sand. ALWAYS have an “ABC type” fire extinguisher available at all times.

Gens Ace provides lithium battery solutions to power your portable devices. We can help consumer and industrial companies to meet their design challenges with a wide range of standard rc car lipo battery products and easy customisation options.

Our Lithium Ion Polymer (Li-Po) and Lithium Ion (Li-Ion)  battery technologies offer flexible, efficient and reliable solutions to your mobile power and back up power needs. Many of our cells are pre-certified to UL1642 or IEC62133. We can undertake these and other certification testing as required by our customers, including UN38.3 for transportation. The cell list you see on the site is only a selection of available products, which include very High Energy Density cells and High Current Discharge as well as High and Low Temperature Cells.