1, the periodic inspection

Regular inspection of the terminal voltage of the HP Pavilion dv7 battery cell unit and the internal resistance. Unit for 12V batteries, found in the inspection of each cell of the device when the voltage between the V of over 0.4 or more power over their resistance 80mΩ, it must be balanced on the battery charger to the internal resistance of the battery recovery and disposal of power imbalances between the unit cell. Balanced charging voltage charge from 13.5 to 13.8 ~. Balanced treatment of most of the battery of its power can be produced 30mΩ or less.

UPS is operating, because the properties of each cell unit in time to change the imbalance is no longer possible to rely on the UPS to eliminate the internal charging circuitry, this function was already clear unbalanced nature of the group of battery, if not taken out quickly enough to the degree of imbalance is increasingly difficult to address.

To bail

UPS power down more than 10 days prior to the restart conditions you need to enjoy without the power of the inverter circuit in the battery charge on the float 10 ~ 12, then again to load on a single charge. UPS power supply in a floating state, with no rejection in the long run, what is the "Save READY" state. If this condition lasts too long, so that the battery because of the "memory too long" and are not thrown, he was raised mainly for the internal resistance of the battery, up to some serious Ω resistance.

We found: at room temperature of 20 ℃, after 1 month of storage, the available capacity of the battery by about 97% of the nominal value when stored for 6 months with no capacity available for 80% of the rated capacity. If the temperature increases storage, so the available capacity. Therefore, the user is intentionally preferably at intervals of 20 months, C °, food so that the work be on the UPS to the battery power to the state. However, this operation should not be too long, the load is over 30% of rated power, about 10 minutes on defense.

Reducing the depth of discharge

The battery life and is closely related to the depth of discharge. UPS made by the lighter the load, the HP 484170-001 Battery power is interrupted, there is the carrying capacity of rated capacity available on the report, in this case, if the inverter is due to low battery voltage automatically terminated when the battery is relatively deep depth of discharge on the ground.

The actual process of how to reduce the battery is completely discharged happen? The method is very simple: If the UPS fails to alternating current, replace the battery of the UPS by the state, the vast majority of the power of the inverter will be used by an informed periodic deviation alarm 4s the user through the battery is to provide energy. When you hear the alarm sound of rapid change, it shows the power in the depth of the emergency treatment of shock should immediately turn off the UPS. No general requirement not to allow the UPS has been working because the battery voltage is too low to automatically until it stops.

With peak power

UPS for an extended period of low supply voltage or the Sony VGP-BPS13/Q Battery power user to recharge the battery, because not enough to prevent long-term premature failure of the peak power should be fully used (or night) to battery when the battery is fully charged, each sufficient time to the date of loading and unloading. Generally, the battery is completely discharged, then charge 90% of the rated power of 10 ~ 12 or more.

Note that the choice of the charger

UPS power supply with a sealed maintenance-free battery can not be used RCS-style "fast charger" to charge. This is because the charger is caused when free in both "burden of the current flow" and "transient voltages at the poor condition of the load. The ability of the state of the battery is significantly available battery scrap serious. Constant in the circuit charge voltage threshold too low when the inverter is not set low battery voltage protection, otherwise it is vulnerable, presented the load current, of course, the best of both constant current there is the charger to recharge constantly.

At room temperature to ensure food

Sony VGP-BPS13 Battery available capacity and the temperature of the environment. In general, the performance parameters of the battery, the temperature is 20 ℃ under the conditions of the calibration if the temperature below 20 ℃, the charge storage capacity is available, it will be reduced, while the temperature is above 20 ℃, the unit uses a small increase in capacity. Different types of batteries from different manufacturers affected by temperature, to varying degrees. According to statistics, at -20 ℃, the battery capacity is only about 60% of rated capacity. Shows the influence of temperature can not be ignored.

Comment

To extend battery life, not only in maintaining the attention and the choice must be fully taken into account when the properties of the load (resistive, inductive, capacitive) and size. Not too long ago the battery in slow motion to avoid discharging the battery is too low to cause the Compaq Presario CQ61 battery scrap.