Handling Precautions and Guideline
For Lipo (Lithium-ion Polymer) Rechargeable Batteries
PrefaceThanks for choosing the products manufactured by DESIRE POWER Co., Ltd. Before using the product. Please read and follow the instructions and safety precautions below carefully.
Statements
Users should contact DESIRE POWERE first if they want to use the battery in the circumstances which are not stipulated in the documents, because we need conduct specific test to verify the performance and security of the battery under that very condition. Otherwise, DESIRE POWERE and its retailers will assume no liability for failures to comply with these instructions and safety precautions.
1. Charge
1.1 First charge
When you receive the battery, please do not use it directly, but to fully charge it first with the specific Lipo balance-charger.
1.2 Charger
Use specific Lipo balance-charger only. Other types of charger are not recommended to charge our batteries.
1.3 Charging Current
Never charge batteries with current over the maximum charging current which was regulated by specifications (1-2C in general), strongly recommeded should not exceed 5C. Higher setting may lead to charging insufficiency, inferior in performance, heating and even leakage.
1.4 Charging Voltage
Charging Voltage should be controlled around 4.20V and under any condition should not beyond the regulated limit voltage (4.25V/cell). As for battery pack in series, please choose balance charging or charge each cell respectively. Series charging is not recommended. If the charging voltage is too high or you choose series charging, over-charge may occur. All these may result in battery swelling, heating or even leakage, severely deteriorating batteries&rsquo performance and cycle life.
1.5 Charging Temperature
Batteries must be charged at a place within the temperature ranged from 15℃ to 35℃, or it may lead to the reduction of charging &discharging efficiency, charging insufficiency.
1.6 Reverse charging is prohibited
Please correctly connect the positive (+) and negative (-) electrode of the battery, and strictly avoid reverse charging. Otherwise, the battery would not be chargeable. Meanwhile, reverse charging will reduce the charging& discharging performance and security of the battery, even result in heating or leakage.
1.7 Disposal of abnormal phenomena while charging
If there&rsquos any abnormal condition occurs during the charging process, please discontinue the charging process immediately and consult relevant professionals for disposal.
2. Usage
2.1 Checking voltage
If you use battery packs, please check the voltage of the pack before using. The voltage difference between any two cells should not be too huge, or recharging is needed. If the voltage difference of two cells is too huge, the one with lower voltage may happened to over-discharge while using, causing battery swelling, heating, and finally deteriorating the batteries&rsquo performance and shortening their cycle life.
2.2 Discharging current
Never discharge batteries with current over the designed maximum continuous discharging current which was regulated in relevant specifications, or the battery&rsquos performance may be deteriorated and cycle life be shortened, causing overheating and even swelling, breakage, internal short-circuit, etc.
2.3 Discharging temperature
If the surface temperature exceeds 65℃ while functioning, the battery should be suspended using until it cools down to ambient temperature naturally. Higher temperature may result in battery swelling and performance deterioration.
2.4 Cut-off Voltage
Please make sure the cut-off voltage is not lower than 3.3V, and otherwise the battery&rsquos performance may be severely affected because of over-discharging.
3. Storage & Transportation
3.1 Transportation
Please avoid severely vibration, shocks, extrusions and high temperature during batteries&rsquo transportation, and please do take care while carrying them. All batteries should be packed by soft materials for protection.
3.2 Long-term storage
If storing for a long time, batteries must be stored at about 3.8V/cell (approximately 50% charged)/ in the semi-electric status (about 3.8V). Do regularly charge & discharge them for maintenance (about 1-3 times every 3 months).
3.3 Storage Environment
Do store batteries at a place with low-humidity and free from corrosive gas within the temperature ranged from -20℃-40℃.
4 Additional Notes
4.1 Crashing, hitting and bending batteries are prohibited. Protect them from sharp objects.
4.2 Under any circumstances disassembly of batteries is prohibited.
4.3 Do not short-circuit batteries by directly connecting the positive and negative electrodes, or batteries may be severely damaged, even cause fire disaster.
4.4 Do not throw batteries into fire, otherwise fire disaster or explosion may occur.
4.5 Do not Soak batteries in liquid, such as fresh water, sea water and beverages (i.e. juice, coffee) etc.
4.6 The replacement of bare cells should be conducted by the supplier rather than the user.
4.7 The use of damaged batteries is prohibited. Batteries may be damaged by hitting during their transportation. If there are any abnormal features, such as the damage of battery&rsquos seal edge, breakage of hard case, or emitting electrolyte flavor, these batteries are not allowed to use again. Any battery with electrolyte leakage or emitting electrolyte flavor should be kept far away from flammable/combustible materials to avoid fire disaster.
4.8 If there&rsquos any question while using, please contact relevant professionals for disposal.
4.9 Used or damaged batteries shouldn&rsquot be discarded at random, but should be handed to specific Hazardous Waste Facility for disposal.
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