Some recommendations for the use of rechargeable batteries.

When charging batteries, follow these guidelines:

  • When charging the battery, connect the charger connector to the battery first and then to the AC outlet; 
  • After the battery is fully charged, turn off the AC power and then disconnect the battery. 
  • If you disconnect the battery from the charger first, during charging, especially when the charging current is high (red light), the charger can be easily damaged.
  • When the charger LED indicator turns green, continue charging for 2-3 hours to balance the battery cells (for lithium batteries).
  • Please use the charger and battery in a dry place, avoid overheating and hypothermia.
  • Use CC/CV (constant current/constant voltage) chargers.
  • Please try not to charge the battery immediately after the battery is depleted. Let it cool down.
  • Please do not charge the battery while it is being discharged. It must be understood that the battery can either be charged or discharged. Otherwise, you risk damaging the battery.
  • Use modern chargers with a full range of charge cycles.
  • Do not discharge the battery below the discharge voltage limit specified for the specific battery.
  • If you need to store the battery for a long time, leave the battery charged at 40-50%.
  • Please do not use Li-Ion batteries in lead-acid UPS/Inverters without deep modification of the latter.
  • Use a LiFePo4 battery and there will be little or no modification to the UPS/Inverters.

Recommendations for the discharge (operation) of batteries:

  • Heat will increase battery performance, but every 10°C above 25-30°C will cut battery life in half. It is recommended to keep the battery in a cool place.
  • Don't over-discharge.
  • For heavy loads and repeated deep discharges, using a larger capacity battery will minimize stress.
  • Discharging with a moderate DC current is better for the battery compared to pulsed and high short-term loads.
  • A battery shows the properties of a capacitor when discharged by a high frequency current. This allows higher peak currents to be used compared to DC discharge.
  • Nickel-based and lithium-based batteries have high chemical performance; lead-acid ones are slow and take a few seconds to recover between heavy discharges.
  • Approaching the boundary levels of charge and discharge is degrading for all electrochemical batteries.

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