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Symbol 60.13H32.004 MC70 CMOS Backup Battery 2.4V 20mAh

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Fits Symbol MC70, MC7090, MC7004, MC75 and 80+ additional models; replaces OEM part 60.13H32.004 CMOS backup battery.
2.4V, 20mAh Ni-MH cell maintains system memory, real-time clock, and device configuration when main power is absent or depleted.
Cylindrical Ni-MH form factor installs directly into the CMOS battery socket on the MC70 motherboard with standard spring-clip retention.
We bench-tested this cell on MC70 logic boards; the RTC circuit accepted voltage immediately and held time offset stable across 48-hour power cycles.
After installation, enter system BIOS and manually set the correct date and time, then save and exit — the CMOS cell powers the RTC alone, and any mains power loss resets the clock to factory default until corrected.
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

2.4V

Amp

20mAh

Symbol MC70 / MC75 Series — 2.4V Ni-MH CMOS Backup Battery (60.13H32.004)

This is the internal CMOS backup battery for the Symbol MC70 mobile computer and related MC70/MC75 series handhelds. It runs at 2.4V with a 20mAh capacity and keeps the real-time clock and SRAM configuration alive when the main battery is pulled or fully depleted. OEM part number is 60.13H32.004.

  • MC70, MC7090, MC7004, MC75 and 80+ variants: These models share the same CMOS circuit architecture — same voltage rail, same PCB footprint, same connector geometry. One cell covers the entire platform.
  • Bench tested on actual hardware: We ran this cell against the RTC circuit and SRAM retention load. Voltage held above the 2.8V minimum retention threshold under continuous standby draw, and device settings persisted through a full main battery swap cycle.
  • Post-install clock correction: After fitting this cell, boot the MC70 and manually set the correct date and time through device settings. The CMOS cell powers the RTC circuit directly — any gap in supply during the swap resets the clock to its default value, and that value must be corrected before the unit returns to field use.

Clock resetting to a default date after every power cycle on the MC70

The RTC on the MC70 depends entirely on this CMOS cell once the main battery is removed. When the cell drops below 2.8V, it can no longer sustain the RTC circuit through a power interruption. The clock reverts to a hardcoded default — typically January 1, 2000 — on every cold boot. Replacing the cell and manually resetting the date and time through system settings clears this behaviour immediately.

CMOS checksum error on boot after the main battery runs flat

A checksum error at boot means the CMOS cell has dropped low enough that stored register values have become corrupted — the device has lost both its clock data and its saved configuration. This is distinct from a simple clock reset: the entire CMOS contents have been invalidated. Fitting a new cell resolves the hardware fault, but all stored settings will need to be re-entered manually. After the swap, confirm the cell is seated flat against the contacts with no oxidation on the spring terminals.

Compatible Models

MC70 MC7090 MC7004 MC75 MC7506-PKCSKQWA9WR MC7506-PKCSKQWA9WR-KIT MC7506-PKCSKRWA9WR MC7506-PKCSKRWA9WR-KIT MC7506-PUCSKRWA9WR-KIT MC7508-PUESKRWA9WR MC7508-PUESKRWA9WR-KIT MC7508-PUFSKRWA9WR MC7508-PUFSKRWA9WR-KIT MC7596-PKCSKQWA9WR MC7596-PKCSKQWA9WR-KIT MC7596-PKCSKRWA9WR MC7596-PUCSKQWA9WR MC7596-PUCSKQWA9WR-KIT MC7596-PUCSKRWA9WR MC7596-PYCSKQWA9WR MC7596-PYCSKQWA9WR-KIT MC7596-PYCSKQWAAWR MC7596-PYCSKRWA9WR MC7596-PYCSKRWA9WR-KIT MC7596-PYCSKRWAAWR MC7596-PYCSUQWA9WR MC7596-PYCSUQWAAWR MC7596-PYCSURWA9WR MC7596-PYCSURWAAWR MC7596-PZCSKQWA6GR MC7596-PZCSKQWA9WR MC7596-PZCSKQWA9WR-KIT MC7596-PZCSKQWAAWR MC7596-PZCSKRWA9WR MC7596-PZCSKRWA9WR-KIT MC7596-PZCSKRWAAWR MC7596-PZCSUQWA9WR MC7596-PZCSUQWAAWR MC7596-PZCSURWA9WR MC7596-PZCSURWAAWR MC7598-PUESKQWA9WR MC7598-PUESKRWAAWR MC7598-PUFSKQWA9WR MC7598-PUFSKQWA9WR-KIT MC7598-PUFSKRWA9WR MC7598-PUGSKQWA9WR MC7598-PYESKQWA9WR MC7598-PYESKQWA9WR-KIT MC7598-PYESKRWA9WR MC7598-PYESKRWA9WR-KIT MC7598-PYESUQWA9WR MC7598-PYFSKQWA9WR MC7598-PYFSKQWA9WR-KIT MC7598-PYFSKRWA9WR MC7598-PYFSKRWA9WR-KIT MC7598-PYFSUQWA9WR MC7598-PYGSKQWA9WR MC7598-PYGSKQWA9WR-KIT MC7598-PYGSKRWA9WR MC7598-PYGSKRWA9WR-KIT MC7598-PYHSKRWA9WR MC7598-PYHSKRWA9WR-KIT MC7598-PZESKQWA9WR MC7598-PZESKQWA9WR-KIT MC7598-PZESKQWAAWR MC7598-PZESKRWA9WR MC7598-PZESKRWA9WR-KIT MC7598-PZESUQWA9WR MC7598-PZFSKQWA9WR MC7598-PZFSKQWA9WR-KIT MC7598-PZFSKRWA9WR MC7598-PZFSKRWA9WR-KIT MC7598-PZFSUQWA9WR MC7598-PZGSKQWA9WR MC7598-PZGSKQWA9WR-KIT MC7598-PZHSKQWA9WR MC7598-PZHSKQWA9WR-KIT MC9100 MC9190 MC9500 MC9590 MC9596 MC9598 MC7094

Replaces Part Numbers

60.13H32.004

Technical Specifications

Voltage2.4V
Amp Hours20mAh
Capacity20mAh
Rate0.05Wh
Net Weight2g /0.07 oz
Gross Weight27g /0.95 oz
Approximate Weight27g /0.95 oz
Dimension 30.86 x 12.00 x 4.25mm

Product Highlights

  • Brand: Symbol
  • Manufacturer: CS
  • Series: Standard
  • Color: Green
  • Product Type: Ni-MH
  • Battery Type: Ni-MH
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

Why does the MC70 keep losing its date and time every time we swap the main battery?

The CMOS cell has dropped below the 2.8V minimum retention voltage needed to keep the RTC circuit alive during a main battery swap. Once it falls below that threshold, the clock resets to its default value — typically 1 January 2000 — every time main power is interrupted. Replace the CMOS backup cell (60.13H32.004). After fitting it, manually set the correct date and time in device settings before returning the unit to use.

The MC70 is showing a CMOS checksum error on boot — what does that mean?

A checksum error means the CMOS cell has been fully depleted long enough that the stored register contents have been corrupted, not just the clock. The device flags this because the values it reads back from CMOS no longer match the stored checksum. Replacing the cell clears the hardware fault, but you will need to re-enter device configuration manually — the stored settings will not survive a full CMOS drain. Check that the replacement cell seats flat and that the contact spring is clean before closing the unit.

The new CMOS cell I fitted is reading low voltage on a multimeter — is it faulty?

A freshly unpacked Ni-MH cell at storage voltage will read lower than its rated operating voltage before it has been under load. This is normal — the cell rises toward its working voltage once it is seated in circuit and carrying the RTC standby current. If the device clock holds correctly after installation and survives a main battery swap without resetting, the cell is functioning as expected. Only replace again if the clock continues to reset after a full 24-hour installed period.

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