PRECAUTIONS FOR USE AND HANDLING WITH NI-CD BATTERIES
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| 1.Charging |
| 1.1 Charging temperature |
| Charge batteries within an recommended ambient temperature range of 0℃ to 45℃. Temperature during charging affects charging efficiency. |
| 1.2 Parallel charging of batteries |
| Sufficient care must be taken during the design of the charger when charging batteries connected in parallel. |
| Parallel charge are not recommended. |
| 1.3 Reverse charging |
| Never attempt reverse charging. |
| Charging with polarity reversed can cause a reversal in battery polarity and causing gas pressure inside the battery to rise, which can activate the safety vent, lead to alkaline electrolyte leakage, rapid deterioration in battery performance, battery swelling or battery rupture. |
| 1.4 Overcharging |
| Avoid overcharging. |
| Repeated overcharging can lead to deterioration in battery performance. |
| 1.5 Rapid Charging |
| To charge batteries rapidly, use the specified charger and follow the correct procedures. |
| 1.6 Trickle charging (continuous charging) |
Carry out trickle charge by applying the current of 0.03 to 0.05 CmA. The correct current value is determined depending on the features and purpose of the equipment.
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| 2. Discharging |
| 2.1 Discharge temperature |
| Discharge batteries within an ambient temperature range of -20℃ to +65℃ |
| Discharge current level affects discharging efficiency. Discharging efficiency is good within a current range of 0.1CmA to 0.5 CmA. |
| 2.2 Over-discharge |
| Since over-discharging damage the battery characteristics, do not forget to turn off the switch when discharging, and do not leave the battery connected to the equipment for long periods of time. |
| 2.3 High-current discharging |
Carry out trickle charge by applying the current of 0.03 to 0.05 CmA. The correct current value is determined depending on the features and purpose of the equipment.
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| 3. Storage |
| 3.1 Storage temperature and humidity (short-term) |
| Store batteries in a dry location with low humidity, no corrosive gases, and at a temperature range of -20℃ to +45℃. |
| 3.2 Long-term storage (2 years, -20℃ to +35℃) |
Because long-term storage can accelerate battery self-discharge and lead to the deactivation of reactants, locations where the temperature ranges between +10℃ and +30℃ are suitable for long-term storage. When storing batteries for more than 1 year charge at least once per year to prevent leakage and deterioration in performance due to self-discharging.
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| 4. Service Life of Batteries |
| 4.1 Cycle life |
| Batteries used under proper conditions of charging and discharging can be used 500 cycles or more. |
| 4.2 Service life with long-term use |
Because batteries are chemical products involving internal chemical reactions, performance deteriorates not only with use but also during prolonged storage. Normally, a battery will last 3 to 5 years if used under proper conditions and not overcharged or over-discharged.
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| 5. Precaution Items Regarding the Battery Use and Handling |
| 5.1 Disassembly |
| Never disassemble a battery, as the electrolyte inside is strong alkaline and can damage skin and clothes. |
| 5.2 Short-circuiting |
| Never attempt to short-circuit a battery. Doing so can damage the product and generate heat that can cause burns. |
| 5.3 Throwing batteries into a fire or water |
| Disposing of a battery in fire can cause the battery to rupture. Also avoid placing batteries in water, as this causes batteries to cease to function. |
| 5.4 Soldering |
| Never solder anything directly to a battery. This can destroy the safety features of the battery by damaging the safety vent inside the cap. |
| 5.5 Overcharging at high currents and reverse charging |
| Never reverse charge or overcharge with high currents (i.e. higher than rated). Doing so causes rapid gas generation and increased gas pressure, thus causing batteries to swell or rupture. |
| 5.6 Using old and new batteries together |
Avod using old and new batteries together. Also avoid using these batteries with
ordinary dry-cell batteries
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| 6. Battery disposal |
| For green-environment issue it’s important that batteries should be recycled in an proper way.
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