Manual Book：

一、  Before use

(1)  When the battery arrives, please check if the outer packing box is abnormal.

(2) When the battery reaches the place of use, please open the box to check the appearance of the battery (whether there is acid leakage, rupture), whether the number of batteries is correct and whether the accessories are complete.

二、 Installation and connection

(1)  When installing batteries to the equipment, we should consider   the ease of inspection and maintenance and replacement, and installation in the lowest possible position. Although VRLA batteries can be placed at will, inverted charging should be avoided. When the battery is inverted and overcharged, it is possible to leak the electrolyte from the safety valve.

(2)  Pay attention to the material and shape of the battery connector, and pay attention to the contact degree between the connector and the battery, the connector and the electrical equipment. Good or bad contact will also affect battery characteristics

(3)  The battery shall be fixed to the equipment and shall not move freely to avoid unnecessary vibration and impact. The battery is not fixed well, which may cause battery damage or reduce the conductivity of the connection

(4)  Avoid placing batteries next to instruments that generate heat sources (e.g. transformers). When the battery is placed next to an instrument that produces a heat source, the temperature inside the battery will rise, shortening the battery life or producing what is known as "thermal runaway ". "Thermal runaway" often occurs when a higher charging voltage is used and/or charged at a higher ambient temperature, the charging current increases gradually, causing the temperature inside the battery to rise again, forming a vicious cycle that eventually leads to battery scrapping.

(5) Do not place the battery next to the sparking instrument (such as switches and fuses) or move the open fire near the battery. When the battery overcharge can produce flammable gas, sparks will detonate flammable gas.

(6)  When using multiple batteries, first connect the battery to the charger or load, and then connect the battery to the charger or load. Note that the positive electrode of the battery is connected to the positive electrode of the charger or load. If the polarity of the battery is opposite to the polarity of the charger or the polarity of the load, it may cause explosion, fire or damage to the equipment, serious can hurt personal safety.

(7)  The wire between the battery and the appliance shall be adequately insulated and flame retardant. If insulation is not strong, short-circuit (or overcurrent) discharge heat may cause charring, smoke or fire. In severe cases, electric shock may occur.

(8)  When a large number of batteries are connected in series, pay attention to high voltage.

(9)  Do not bend the terminal, try not to weld directly on the terminal, when welding is inevitable, please contact our company first.

(10)  When the battery is connected to the charger or load, the circuit should be disconnected first.

(11) The battery must not be placed in a sealed container, when the battery is placed in a container, package, bag and other similar items, there must be an exhaust hole. When the battery is overcharged, the flammable gas that will be produced may cause an explosion.

三、 increase charge

 When the battery is in the process of transportation and storage, due to self-discharge, the battery capacity must be lost, so it is necessary to make the battery sufficient before use. Failure to charge effectively or seriously overcharge will affect the battery output capacity. The battery should be replenished before use, the increasing charge parameters are as follows:

四、Daily charge

(1)  Keep abreast of new charging methods and charging parameters. A proper charging method can fully reflect the performance of the battery

 (2)  Do not charge the battery in a place with direct sunlight. The temperature of the battery will rise too high and may overcharge

 (3) The battery shall not be charged in a place with heat source or heat accumulation.

(4)  The charging time shall reach the time specified in the specification, or the time when the charger indicator shows the charging result. If the battery is not charged enough, it will greatly shorten the battery life.

(5)  Avoid charging enough batteries regularly, which will shorten battery life.

(6) For rechargeable batteries, do not charge continuously for more than 24 hours, otherwise the battery will be damaged

(7)  Avoid parallel batteries in charge-discharge cycle use. When the battery is charged and discharged in parallel, it is easy to produce imbalance, thus shortening the charge and discharge times of the battery.

五、discharge

(1)  According to the size of the discharge current, the discharge termination voltage is determined. The relationship between the discharge current and the discharge termination voltage we suggest is referred to "discharge characteristics ". The discharge voltage should not be lower than the discharge termination voltage we suggest. When the discharge voltage of the battery is lower than the termination voltage we recommend, it is possible to over discharge and damage the battery performance.

(2)  Battery overdischarge is strictly prohibited, battery should be charged immediately after discharge. Even if the discharge voltage of the battery is not lower than the termination voltage we suggest, it will damage the performance of the battery if it is not charged and stored in time. If no overdischarge (and weak current discharge) protection circuit (or instrument) is provided on the device, the battery may produce overdischarge and not even recover its initial capacity after charging. When the battery is stored in the discharge state, recharging is very difficult due to the increase of internal resistance.

六、Inspection and maintenance

Recommendations for periodic inspection and maintenance

(1) In the process of floating charge (or trickle charge), the total voltage of the whole battery, such as the irregular (or wrong) reading output of the charging equipment, must be found out the reason for the deviation from the normal voltage range. When the total voltage is lower than the normal voltage, the battery reduces the capacity because of insufficient charging. When the total voltage is higher than the normal voltage, the battery loses the capacity because of overcharging, and may cause "thermal runaway ".

(2)  Check any abnormal phenomenon of the battery, if there is damage (e.g. crack, deformation, electrolyte leakage, etc.), the new battery should be replaced immediately. If dust is found, it should be cleaned up. If the abnormal battery continues to use, there will be a decrease in battery capacity, electrolyte leakage, smoke, and even open fire.

七、 Battery replacement

(1)  When the battery appearance or performance is abnormal, the battery should be replaced. If the battery is in series, the whole battery should be updated immediately according to the actual situation.

(2) When the battery appearance or performance is abnormal, the battery should be replaced. If the battery is in series, the whole battery should be updated immediately according to the actual situation.

八、storage

(1) Store the battery in a stable position away from metals and other conductive substances.

(2) The battery must be stored in sufficient power

(3)  When the battery needs to be stored, the battery should be removed from the device or disconnected from the charger and load. The battery should be kept at the lowest possible ambient temperature. When the equipment equipped with the battery does not have an instrument to prevent over discharge (including weak current discharge), once the battery is not removed from the device (or the circuit is not disconnected), the battery may produce over discharge, and may not recover its original capacity after charging. If the battery is not stored in a low temperature environment, the self-discharge rate will increase and the battery performance will be reduced. If stored in a wet environment, the terminal may be corroded.