Overview

Maxell has developed CLB2032 battery unit that includes four control functions. This battery unit facilitates circuit design and can be installed quickly.

Small CLB2032 battery unit that includes four different battery control functions

With a diameter of 20mm*1 and a height of 5mm, this small battery unit includes a charge control, protection function, voltage regulator and low battery detector.

Facilitates circuit design

This CLB2032 battery unit has essential control circuits, enables easy circuit design and can be installed quickly.

Charge control function

The charging process is controlled automatically.

Protection function

Under-voltage, over-voltage and other limitations are controlled automatically.

Voltage regulation (optional)

Voltages of between 3.7V and 0.8V are available with the CLB2032 battery unit’s DC/DC converter.
This supports easier circuit design from a primary battery to a rechargeable battery by using existing circuit designs.

Low battery detection (optional)

The CLB2032 battery unit can detect battery capacity after voltage conversion by the DC/DC converter when output voltage drops to a certain point. This indicates that the battery needs recharging.

  • Diameter excludes projection.

Product list

ModelNominal Voltage
(V)
Nominal Capacity
(mAh)*3
Charge (CV)Discharge (CC)Dimensions*5Weight
(g)*5
Input Voltage
(V)
Temperature
(deg. C)
End Voltage
(V)
Max. Current
(mA)
Temperature
(deg. C)
Diameter*6
(mm)
Height
(mm)
CLB2032 BU 3.7/3.0*2 70 5.0 0 to +45 3.0 (2.7*4) 140 -20 to +60 20 5.0 3.8
  • 2 The DC/DC converter enables voltages of between 3.7V and 0.8V. 3.0V is an example.
  • 3 Nominal capacity is according to the following conditions : Charge:0.5ItA/4.2V (CCCV)/End current 2mA, Discharge:0.2ItA/E.V.=3.0V, Temperature 20deg.C without DC/DC converter
  • 4 2.7V means the under-voltage limit by the protection circuit
  • 5 Dimensions and weight are for the product itself, but may vary depending on terminal specifications and other factors.
  • 6 Diameter excludes projection.

Terminal Configuration

  1. Output(Vout)
  2. Input(+5V)
  3. Charge status (CHG)
  4. GND
  • Data and dimensions are not guaranteed. For further details, please contact us at your nearest Maxell office. -Contents on this website are subject to change without notice.
Q901:
[Glossary of Battery Terms] : Primary battery
Q902:
[Glossary of Battery Terms] : Rechargeable battery (Secondary battery)
Q903:
[Glossary of Battery Terms] : Open circuit voltage (OCV)
Q904:
[Glossary of Battery Terms] : Closed circuit voltage (CCV)
Q905:
[Glossary of Battery Terms] : Nominal voltage
Q906:
[Glossary of Battery Terms] : Load
Q907:
[Glossary of Battery Terms] : End-point voltage (End voltage, Cutoff voltage, Final voltage)
Q908:
[Glossary of Battery Terms] : Internal resistance
Q909:
[Glossary of Battery Terms] : Discharge
Q910:
[Glossary of Battery Terms] : Over discharge
Q911:
[Glossary of Battery Terms] : Self discharge
Q912:
[Glossary of Battery Terms] : Discharge characteristics (Discharge curve)
Q913:
[Glossary of Battery Terms] : Charge
Q914:
[Glossary of Battery Terms] : Polarization
Q915:
[Glossary of Battery Terms] : Duration time (Duration period)
Q916:
[Glossary of Battery Terms] : Capacity
Q917:
[Glossary of Battery Terms] : Energy Density
Q923:
[Glossary of Battery Terms] : Initial test
Q924:
[Glossary of Battery Terms] : Storage
Q925:
[Glossary of Battery Terms] : Test after storage
Q926:
[Glossary of Battery Terms] : Aging
Q927:
[Glossary of Battery Terms] : Expiry date
Q928:
[Glossary of Battery Terms] : Active material
Q918:
[Glossary of Battery Terms] : Electrolyte
Q919:
[Glossary of Battery Terms] : Utilization factor
Q920:
[Glossary of Battery Terms] : Leakage resistance
Q921:
[Glossary of Battery Terms] : Short circuit current
Q922:
[Glossary of Battery Terms] : Internal short circuit

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