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Battery balance
- Thread starter btemplet
- Start date
What equipment besides batteries you've got with you?I I have 4 CALB 3.2 battery cells 3 of them 3.3 volts 3.5 how do I balance them
BMS? Benchtop DC Power supply? Balancer Board?
DIYrich
Solar Wizard
Option 1: 3.x volt battery charger. Charge each battery individually to 3.5 volts. Put them in parallel, and charge to 3.55 volts.I I have 4 CALB 3.2 battery cells 3 of them 3.3 volts 3.5 how do I balance them
Option 2: 12v bms. Put in series. Balance the pack.
What equipment besides batteries you've got with you?
BMS? Benchtop DC Power supply? Balancer Board?
If charging the cells whether individually or in parallel, then any voltage above 3.37 V will fully charge them.
However, you need to be concerned if the balance is being disturbed quickly. Usually indicates something wrong with BMS balancer settings
However, you need to be concerned if the balance is being disturbed quickly. Usually indicates something wrong with BMS balancer settings
No need if your BMS already has passive/active balancing built in.What is a balancing board and should I invest in one?
It just needs to be configured properly.
Daly BMSes are known to have 150mA passive balancers. If it allows Bluetooth configuration, then you need to tweak those settings to make sure it is kicking in at the end of charge cycle.I don’t have a built-in BMS I am using a daly BMS
What equipment besides batteries you've got with you?
BMS? Benchtop DC Power supply? Balancer Board?
If charging the cells whether individually or in parallel, then any voltage above 3.37 V will fully charge them.
However, you need to be concerned if the balance is being disturbed quickly. Usually indicates something wrong with BMS balancer settings
I assume you're asking about how to check battery balance:
Charge the battery fully to any voltage above 3.4 to 3.6 V with appropriate cutoff current and then turn BMS charge MOS off.
If your cell voltage are close together after some rest, you have a balanced pack.
Charge the battery fully to any voltage above 3.4 to 3.6 V with appropriate cutoff current and then turn BMS charge MOS off.
If your cell voltage are close together after some rest, you have a balanced pack.
Last edited:
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