Lithium battery charge protection module 4S 4A 14.8V / 3S 4A 11.1V 18650
The BMS Battery Charge Balancer (Battery Management System) is a device that charges 4 batteries (with option for 3 batteries) Li-ion in series (3.7V), tolerating a current of 4A.
operates at a nominal voltage: 14.8 V or 16.8 V
It has overcharge / over-discharge / over-current / short circuit protection.
The Balancer charges 4 batteries in series, being useful in electronic products that require 15V Additional protects systems from overload, over current and short circuits; since it detects the voltage level in each of the batteries by balancing and matching them.
Lithium battery charge protection module Has point to connect NTC
By installing the sensor ntc, the temperature of the battery is measured, and if the temperature of the battery increases, it automatically turns off the battery to avoid its consequences.
SPECIFICATION
Model: CM5016
PCB Color: Green
Short circuit protection: Yes, self recovery delay
Number of Batteries to Charge: 4 and 3
Dimensions: 50mm x 16mm
Weight: 3g
Charging voltage: 16.8V 4S / 12.6V-13V 3S
Overload detection voltage: 4.25V (±0.025V)
Overload discharge: 4.15V ± 0.05V
Discharge voltage: 2.50V (±0.08V)
Over discharge discharge voltage: 3.00 ± 0.1V
Pins
B-: 0V, Negative Terminal
B1: ~3.7V
B2: ~7.4V
B3: ~11.1V
B+: ~14.8V
P+ :Input/output voltage (+) to load
P-: Input/output voltage (-) to load
Precautions
1. Pay attention to the input and output voltage and load current, do not use more than the power of the module and cause it to burn.
2. This module has an anti-static protection circuit, please do not touch it with your hands when working on the module to avoid damaging it.
Note
1: Once you have charged the first line, it will have output.
2: When connecting four battery groups, please make sure that the voltage of each battery group, if not the same, fill each battery separately and then use it in series.
| Items | Specifications | ||
| Lithium-ion/Lithium Polymer | LiFePO4 | ||
| Charge | Charging voltage(CC/CV)-4S | CC/CV:16.8V | CC/CV:14.4V |
| Maximal continuous charging current | 4A | ||
| Discharge | Maximal continuous discharging current | 4A | |
| Low current consumption | Current consumption on operation | <20μA | |
| Current consumption at power down | <0.1μA | ||
| Cell-balance | Cell-balance detection voltage | / | / |
| Cell-balance release voltage | / | / | |
| Cell-balance current | / | / | |
| Over-charge | Overcharge detection voltage | 4.25±0.025V | 3.900 ± 0.025V |
| Overcharge release voltage | 4.15±0.05V | 3.800 ± 0.050V | |
| Overcharge delay time | 0.5~2S | ||
| Over-discharge | Overdischarge detection voltage | 2.50±0.062V | 2.00±0.080V |
| Overdischarge release voltage | 3.0±0.075V | 2.30±0.100V | |
| Overdischarge delay time | 100~300mS | ||
| Discharge overcurrent | Discharge overcurrent detection voltage | 0.2±0.015V | 0.10±0.015V |
| Discharge overcurrent delay time | 15~35ms | ||
| Discharge overcurrent protection | / | ||
| Release condition | Cut-off-load | ||
| Short-circuiting protection | Load short-circuiting detection voltage | / | / |
| Detection condition | Exterior short circuit | ||
| Load short-circuiting detection delay time | 200~800μs | ||
| Release condition | Cut-off-load | ||
| Internal resistance | Static Drain-Source On-Resistance | <20mΩ(B- to P-) | |
| Temperature | Wide range of operation temperature | 40 ~ + 85ºC | |
| Storage Temperature Range | -40 ~ +125ºC | ||
| Dimension | L50*W16mm | ||
