CELECTRA™
1-3 Cell Li-Po Charger
Instructions
Warning: Please read these instructions and safety precautions before charging or using Lithium Polymer (Li-Po) batteries. Always read manufacturer’s instructions included with your batteries.
Thank you for purchasing the E-flite™ Celectra™ 1–3 cell Li-Po charger. The Celecrta is a DC-powered charger meant only for 1-, 2- or 3-cell (3.7V–11.1V) lithium-polymer (Li-Po) battery packs and features a microchip CPU controller with a LED to display the charge status. It also precisely follows standard Li-Po charger algorithms. This programmed set of charging rules tells the charger to increase the voltage of the Li-Po cell to 4.2V (per cell). While the voltage is rising, the current is precisely kept at one of the preset rates (either 250mA, 500mA, 1A, 1.5A, or 2A). Once the maximum cell voltage is reached (at which point the battery is 80–90% charged), the charger steadily maintains a constant voltage, while the current decreases until terminating the charge.
Features
•Selectable between 1-, 2-, or 3-cell Li-Po packs
•Automatically detects incorrect cell count selection
•250mA, 500mA, 1A, 1.5A, and 2A selectable charge rates
•Reverse polarity protection on input and output
•Simple single push-button operation
•Red LED charge status indicator
•Audible beeper indicates power and charge status
•Input leads include banana plugs and alligator sleeves
•Banana output jacks w/included JST (BEC) charge lead
Specifications
•Input power: 12V DC
•Charges 1–3 cell Li-Po packs greater than 250mAh only
•Selectable charge rates: 250mA, 500mA, 1A, 1.5A, and 2A
Safety Precautions
Lithium Polymer batteries are volatile. Failure to read and follow these instructions and safety precautions may result in fire, personal injury and damage to property if batteries are charged or used improperly. Horizon Hobby, Inc. and its retailers assume no liability for failures to comply with these instructions and precautions.
•Do not leave the battery and charger unattended while in use.
IMPROPER CHARGING OF Li-Po BATTERIES COULD RESULT IN FIRE
•Never charge around or in the area of any flammable or combustible materials. The safest place to charge is on a concrete surface or a fire safe container.
•When charging, constantly monitor the temperature of the battery pack. If the battery becomes hot to the touch, discontinue the charging operation immediately by disconnecting the battery pack.
•Do not allow children to charge battery packs unless supervised by a responsible adult.
•The charger can become hot during charging. Use care when selecting where you will charge the battery packs.
•This charger is DC only.
•PLEASE NOTE (+) (-) CANNOT BE CONNECTED INVERSELY.
•The charger will not operate if the supply voltage is below 10V.
•This charger is designed for lithium-polymer batteries only. It MUST NOT be used to charge Ni-Cd and Ni-MH battery packs.
•Maximum charging rate of the Li-Po battery should not be set to over 1x capacity. Ideal charge rate is approximately .7x the capacity of the pack.
•Let the battery cool down to ambient temperature before charging.
•Please check power source or output to make sure they are connected properly. The charger will not operate if either is connected incorrectly.
•If at any time you see a battery starting to balloon or swell up, discontinue charging process immediately. Batteries in this condition may leak, and the reaction with air may cause the chemicals to ignite, resulting in fire. Disconnect the battery from the charger and observe it in a safe place for approximately 15 minutes. A battery in this condition should not be reused. Consult the battery manufacturer for the proper disposal procedure of the battery.
•Do not charge battery packs in series. Charge each battery pack individually. Failure to do so may result in incorrect battery recognition and charging functions. Overcharging may occur and fire may be the result.
2
Loading...