48V 50Ah Smart Lithium Iron Phosphate Battery FAQ

The internal cells of this battery are soft pack cells, which is class A cell.

• The battery installation environment is clean, cool, and well-ventilated. Keep the battery away from oil and dirt.
• Safe operation requires environment temperatures between-4℉-140℉(-20℃-60℃). The recommended operating environment temperature range is 59°F (15°C) and 86°F (30°C).
• At the same time, place the battery upright or horizontally on the long side, not stacked or upside down.

The battery can only be connected in parallel, the recommended maximum number of parallel connections is 8.

IP55

Yes. Use BT-2 (sold separately) to connect to the battery UP communication port, and then the battery and DCHomeAPP can communicate via Bluetooth.

No. The batteries connected in parallel that need to be the same brand, same type, same voltage and same capacity.

• The initial state of the parallel battery should be the same, if the parallel battery is the same type, the same brand, the same voltage, the same capacity, it is generally recommended to fully charge the battery alone, the battery rests for half an hour, the open circuit voltage between the batteries is less than 0.1V before using in parallel.
• The maximum number of parallel-connected batteries should not exceed 8.
• The time interval between the old and new batteries in parallel should not exceed six months.
• It is recommended that the wiring of parallel batteries be wired according to the following wiring diagram, and make sure that the wiring cable specifications and length between parallel batteries are the same, and that the wiring connections are tightened.

No. You need to press and hold the Power Button on the battery for 5S, and the battery will go into Self mode, thus keeping the low self-discharge rate of the battery.

You should choose the following chargers:

• Match 12V LFP battery
• Match charger charging parameters with battery charging parameters
• Charge current is less than the maximum continuous charging current of 50A for the battery
• With reverse polarity, overcurrent, overvoltage and overtemperature protection functions

You don't need to upgrade the battery firmware version, batteries of the same SKU with different firmware versions can be used together in parallel.

• Remove all the wires from the battery.
• Use a charger that matches the battery and has a lithium-ion activation function to activate and charge the battery at an ambient temperature of 41°F or higher (below 131°F), and when the voltage at the battery terminal is restored to 12.4V or higher, the battery can be charged normally

• Firstly, the battery self-heating function consumes power from the external charger device and does not consume the battery's own power.
• When the difference between external charging device charging voltage and battery voltage is greater than 0.5V (the condition of heating circuit conduction), and the continuous charging current of each battery is greater than 3A (to ensure the heating effect), so that when 14℉ ≦ battery internal temperature ≦ 41℉, the battery self-heating function will start working automatically, and when the battery temperature rises above 50℉, the battery self-heating function will stop working automatically.

Please follow the tips below to ensure that the battery emerges from storage in a good condition： 

• Charge the battery to 30%-50%.
• Disconnect the battery from the system.
• Turn the battery off with the activation switch.
• Store the battery in a well-ventilated, dry, clean area with temperatures between -13- 149℉(-25- 65℃).
• Handle the battery carefully to avoid sharp impacts or extreme pressure on the battery housing.
• Charge the battery at least once every 3 months to prevent it from overdischarge.
• Fully charge the battery when it is taken out of storage;