Battery Management

Battery management devices are designed to work alongside battery powered applications. Adding a battery management IC to an electronic circuit can help to create a more efficient and reliable design which will last longer. Battery management can be used to reduce charging time, whilst enabling safe charging and low standby power usage. As electronic systems become more complex, it is essential to provide support through battery and power management ICs.

Battery management can be used with different types of battery, depending on the device. These battery types include lead-acid, Li-Ion, Lithium-Polyment, NiCD and NiMH.

Types of Battery Management IC

  • Battery Chargers are designed to help charge the battery quickly whilst keeping it cool. Chargers work with rechargeable battery packs.
  • Battery Fuel Gauges are available to give information on the charge of a battery. The fuel gauge gives information on the amount of charge available and the health status.
  • Battery Monitors (or Battery Backup Managers) provide monitoring and supervision of the battery performance. They can monitor the voltage, current and temperature to prevent any damage to the battery. Battery backup managers offer backup power from the battery in case of a power outage.

Where are Battery Management ICs used?

These devices are found in most systems that use a rechargeable battery power supply, such as portable and wearable devices. Applications include:

  • Smartphones
  • Laptops
  • Tablets
  • Cameras
  • Battery Powered Tools
  • Electric cars
  • Solar Panels
  • Automation

What is a BMS?

BMS stands for Battery Management System. This is an electronic circuit that monitors and protects a rechargable battery. Battery Management Systems feature devices such as a charge controller, gauge and surge protector, to ensure that the battery does not operate outside of its capabilities. Therefore a BMS provides protection and increases the potential lifespan of the battery.


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Description Price Battery Type Mounting Type IC Type Package Type Pin Count Typical Operating Supply Voltage Dimensions Length Width Height Maximum Operating Temperature Maximum Output Current Maximum Output Voltage Minimum Operating Temperature
RS Stock No. 192-1889
Mfr. Part No.MAX846AEEE+
€3.601
Each (In a Tube of 100)
units
Lithium-Ion, NiCD, NiMH Surface Mount Battery Charge Controller IC QSOP 16 3.7 to 20 V 4.98 x 3.99 x 1.651mm 4.98mm 3.99mm 1.651mm +85 °C - 3.333 V -40 °C
RS Stock No. 662-2132
Mfr. Part No.BQ2002TSN
€2.342
Each (In a Pack of 5)
units
NiCD, NiMH Surface Mount Battery Charge Controller IC SOIC 8 5 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm +70 °C - - 0 °C
RS Stock No. 827-9314
Mfr. Part No.BQ24313DSGT
€0.374
Each (In a Pack of 5)
units
- Surface Mount Battery Fuel Gauge IC WSON 8 3.3 to 30 V 2.1 x 2.1 x 0.75mm 2.1mm 2.1mm 0.75mm +125 °C 1A 6.03 V -40 °C
New
RS Stock No. 208-8467
Mfr. Part No.BQ76200PWR
€2.012
Each (In a Pack of 5)
units
Lead-Acid Surface Mount - SOIC 16 100 V - - - - - 9.5µA - -
New
RS Stock No. 209-6136
Mfr. Part No.LTC4020EUHF#PBF
€6.528
Each (In a Tray of 52)
units
Lithium-Ion Surface Mount - QFN 38 4.5 V - - - - - 3mA - -
New
RS Stock No. 214-9204
Mfr. Part No.MAX77751FEFG+
€1.307
Each (In a Tray of 624)
units
Lithium Surface Mount - FC2QFN 24 4.5 → 13.7 V - - - - - 1.5A - -
RS Stock No. 827-9333
Mfr. Part No.BQ24620RVAT
€2.135
Each (In a Pack of 2)
units
Lithium-Ion, Lithium-Phosphate Surface Mount Battery Charge Controller IC VQFN 16 5 to 28 V 3.6 x 3.6 x 0.95mm 3.6mm 3.6mm 0.95mm +85 °C 10A 6.3 V -40 °C
RS Stock No. 822-6691
Mfr. Part No.LTM8062AEV#PBF
€20.62
Each
units
Lead-Acid, LiFePO4, Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC LGA 77 6 to 32 V 15 x 9 x 4.42mm 15mm 9mm 4.42mm +125 °C - - -40 °C
New
RS Stock No. 216-7781
Mfr. Part No.MAX17320G22+T
€3.174
Each (In a Pack of 5)
units
Lithium-Ion, Lithium-Polymer Surface Mount - TQFN 24 4.2 → 18 V - 4mm - - - - - -
RS Stock No. 146-0132
Mfr. Part No.MCP73871-2CAI/ML
BrandMicrochip
€1.254
Each (In a Tube of 91)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC QFN 20 4.5 to 6 V 4 x 4 x 0.88mm 4mm 4mm 0.88mm +85 °C 1A - -40 °C
New
RS Stock No. 216-7780
Mfr. Part No.MAX17320G22+T
€1.932
Each (On a Reel of 2500)
units
Lithium-Ion, Lithium-Polymer Surface Mount - TQFN 24 4.2 → 18 V - 4mm - - - - - -
RS Stock No. 162-8500
Mfr. Part No.BQ27441DRZT-G1A
€1.495
Each (On a Reel of 250)
units
- Surface Mount Battery Fuel Gauge IC SON 12 2.45 to 4.5 V 4.15 x 2.6 x 0.95mm 4.15mm 2.6mm 0.95mm +85 °C - - -40 °C
RS Stock No. 545-6846
Mfr. Part No.LT1511CSW#PBF
€12.50
Each
units
Lithium-Ion, NiCD, NiMH Surface Mount Battery Charge Controller IC SOIC W 24 - 15.6 x 7.6 x 2.34mm 15.6mm 7.6mm 2.34mm +70 °C - - 0 °C
RS Stock No. 471-398
Mfr. Part No.LTC4008EGN#PBF
€7.31
Each
units
- Surface Mount Battery Charge Controller IC SSOP 20 6 to 28 V 8.74 x 3.99 x 1.48mm 8.74mm 3.99mm 1.48mm +85 °C - - -40 °C
RS Stock No. 146-0131
Mfr. Part No.MCP73837-FCI/UN
BrandMicrochip
€0.719
Each (In a Tube of 100)
units
Lithium-Ion, Lithium-Polymer Surface Mount Battery Charge Controller IC MSOP 10 3.75 to 6 V 3 x 3 x 0.85mm 3mm 3mm 0.85mm +85 °C - - -40 °C