Q
What type of charger should I choose?
Lithium battery must choose a specific charger, do not use a charger for Lead-acid batteries. A lead-acid charger may have MOS with high pressure breakdown protection, which will not protect the BMS from overcharging. LiFePO4 battery charger voltage = battery string No. X 3.6V, while Li-ion battery charger voltage = Battery string No. X 4.2V.
Q
What is the relationship between Battery capacity and BMS current?
There is no direct relationship between Battery capacity and BMS current. A big capacity doesn't mean a big battery setup is needed; it relies on the continuous current of your application. If your engine/motor is powerful, you should choose a high current BMS, rather than basing it on battery capacity.
Q
How do I know if my BMS is damaged?
To judge if the BMS is damaged, please test whether each cell voltage is the same with a voltmeter. If the cell voltage difference is over 1.0V, the fault is likely with the battery cells (such as short run time, no power supply at start, or short charge time). A damaged BMS is displayed as no charge, no discharge, or no discharge while the battery still has voltage.
Q
Are the CANbus ports on these BMS'es "electrically isolated"?
Yes. Electrical isolation isolates the power supply from the electrical circuit (i.e. isolating the electrical branch circuit from the entire electrical system), making it an electrically isolated, independent, ungrounded safety system. This prevents the danger of indirect contact with electricity when the exposed conductor fails and is electrified.
Q
What are the general specifications of the JBD-DP04S007 scheme?
The JBD-DP04S007 is designed for 4S LiFePO4 battery strings, running at 12V. Its size is 160mm * 105mm * 15mm, and it supports current specifications of 100A, 120A, 150A, and 200A.
Q
Can the parameters of this BMS be adjusted?
Yes. Since the product adopts an architecture of a front-end acquisition chip combined with an MCU, some parameters can be flexibly adjusted through the host computer according to customer needs.
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