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SUPPORT & FAQs

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Maintenance & Storage

Battery Maintenance

The battery should be checked regularly for cleanliness.

Periodically inspect your battery terminal connections to ensure they are clean, secure, and protected from the elements, as corrosion can impair battery performance and pose safety risks.

If corrosion is found, disconnect the battery, remove the connectors, and clean them with a dilute baking soda and water solution. Apply anti-oxidizing grease before reconnecting the connectors. Maintain proper records of these checks.

Warning: Under no circumstances should you remove pressure relief valves or add water to the battery.

For more details, please check our Precaution.

Battery Storage

LiFePO4 batteries can be stored both short-term and long-term.

For short-term storage,

  • Store the battery in a dry location
  • No leakage or corrosive gases can enter
  • Temperature range of -20°C to 35°C (-4°F to 95°F).
  • Charge it at least 50%

For long-term storage,

  • Remove the battery from the setup
  • keep the battery in a cool, dry place indoors
  • Away from direct sunlight
  • Make sure the battery is fully charged or at least 50% and recharge it approximately every two months.
  • Clean any terminal corrosion that may affect the battery's performance or pose a safety hazard. Remove the corrosion by brushing the terminals and connectors with a dilute solution of baking soda and water. After cleaning, reapply anti-oxidizing grease before reconnecting and securing the connectors.

Ideal Storage Temperature for LiFePO4 Batteries

  • Less than 30 days: -20℃ to 60℃ / -4°F to 140°F
  • 30 to 90 days: -10℃ to 35℃ / 14°F to 95°F
  • More than 90 days: 15℃ to 35℃ / 59°F to 95°F

Can you store the LiFePO4 battery fully charged?

Yes, for optimal storage, fully charge your LiFePO4 battery before storing it.

These batteries have a low self-discharge rate, typically losing about 2% of their charge per month. To prevent issues, remove any attached loads to avoid additional discharge.

For long-term storage, keep the battery at more than 50% charge, ideally fully charged, as this enhances its charge-retaining capability.

Storing a battery in a low or empty state can lead to serious damage due to over-discharging, which even a Battery Management System (BMS) may not prevent. Ensure the battery is maintained with at least 50% charge to avoid such risks.

Can I leave a LiFePO4 battery connected while it's stored?

It is generally recommended to disconnect the LiFePO4 battery from any devices or equipment before storing it for an extended period. Keeping it connected could lead to slow discharge, especially if the device draws standby power. Disconnecting the battery helps preserve its charge and ensures optimal performance.

How frequently should I inspect a stored LiFePO4 battery?

It’s advisable to check the stored LiFePO4 battery every 3 months to monitor its state of charge. If the battery voltage falls significantly below the recommended storage level, it may need recharging to maintain performance and prevent irreversible damage.

Should I charge the LiFePO4 battery before using it after storage?

If the LiFePO4 battery has been stored for an extended period, it’s advisable to recharge it before use. This ensures the battery is at optimal capacity and performance. Following the manufacturer’s charging guidelines will help prolong its lifespan.

Storing LiFePO4 Batteries in Cold/Hot Weather?

Cold temperatures slow the internal chemical reactions in a battery, which can benefit its long-term health. Thus, storing LiFePO4 batteries at freezing temperatures is good for preserving their condition. However, you should be mindful of the battery’s self-degradation rate. To maintain optimal condition, it is best to charge the battery to 40% to 50% of its capacity.

Storing LiFePO4 batteries in high temperatures or direct sunlight can be very harmful. Extreme heat can cause internal overheating, leading to excessive chemical reactions, uncontrolled voltage drops, or even battery fires. To prevent these risks, avoid storing the battery in high temperatures or exposure to direct sunlight for extended periods.

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