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DataCell 2 Battery Monitor


Description Specs

DataCell 2 – The worlds most advanced battery monitoring system, for multiple battery banks

Datacell 2 is Merlin’s most advanced Battery Monitor. Independent tests by the US Army, Government Laboratories and EnerSys (the World’s largest battery manufacturer) confirm that DataCell II never runs out of Sync with the batteries and returns repeatable accuracy of better than 2% for State of Charge and 1% for State of Health.

If your batteries are critical to your mission, you need DataCell II. Armed with information such as time to run until flat and exact State of Charge you can tell precisely when batteries should be recharged. Knowledge of State of Health provides you with the reassurance that batteries won’t suddenly fail in service.

This knowledge is so mission critical that DataCell II (and it’s military version) is fitted to the worlds most advanced yachts, front line ambulances, mobile critical care units, government agency surveillance vehicles and main battle tanks.

Provides for up to 4 battery banks (of up to 2000Ah each 12 or 24V):

  • Battery Voltage
  • Battery Amps (Net current)
  • Battery State of Charge %
  • Corrected Amp Hours Used
  • Time Remaining until battery flat
  • Battery Temperature
  • Battery State of Health %
  • Configurable Alarms

DataCell II offers flexible installation to suit your application:

Standalone – as a discrete battery monitoring unit. With up to 8x inputs/outputs available, each configurable for different battery parameters, the unit can be used to automatically turn loads on/off, activate generators, activate alarms etc. In this configuration, spare outputs can be wired to red/amber/green LEDs for an at-a-glance battery status display for example.

RS232/422 DataStream – Use the functionality as described above but with the addition of a data output (Data cabling and software supplied with each unit). The supplied Windows based software allows for unit set-up and data-logging. Additional free Dashboard software is also supplied so that you can run a completely customisable set of battery gauges on your PC or Windows tablet.

Canbus Output – Optional CANBus output (can be used at the same time as both of the above) to stream CAN data over your existing vehicle’s network. Allows you to display battery data on existing screens and dashboards. Configuration required – speak with a Power Store Engineer for more information.

Remote Panel – While using the unit in any or all of the modes above, you can also connect a remote panel. This gives a physical panel that can be mounted in a remote location from the DataCell unit to provide all data. Panels are available in two formats: intuitive LCD alphanumeric screen or, large format LED for easy reading from a distance. Remote panels are ‘plug and play’ with both DataCell 1 and DataCell 2.

DataCell II Battery Monitor Data Sheet


Installation Example:DataCell 2 Battery Monitor Installation Example

Typical 2 battery installation shown. DataCell II can monitor up to 4 independent batteries.

A (supplied) 500A shunt must be installed in the DC negative cables for each battery bank as well as a voltage sense wire and temperature sensor.




DataCell Remote PanelsDataCell LCD Panel

Optional “Plug & Play” remote panels are available to allow viewing of Voltage, State of Charge % and alarms.

Available with alphanumeric LCD display or large format red LED dis- play.

Dimensions (HxW): 80 x 122 mm (cut out 70 x 112 mm, max depth 40mm).

Left (top): DataCell LCD Panel (P/n: 19-6100.

Left (bottom): DataCell LED panel (P/n: 19-6101).

DataCell LED Panel

Also available as a bundle package with DataCell.







Independently Verified:DataCell II has been independently tested in both stand-alone and against competitive products by leading independent authorities—including EnerSys DataCell 1 Battery Monitor(World’s Largest Battery Manufacturer), DSTL (UK Defence Scientific Technology Laboratories), US Ar- my Tardec and BAE Systems & General Dynamics. Without exception each verified to be the most accurate monitor tested to date.

DataCell overcomes all other issues associated with other shunt and ohmic based monitoring devices including: Battery Syn- chronisation, Inaccurate readings due to battery post resistance, significant & excessive current consumption, State of Charge drift during standby mode & non-trended inaccurate instantaneous readings.




Weight 214 kg
Dimensions 95 × 115 × 35 cm

12 or 24VDC

Voltage Range


12V Measurement Range


24V Measurement Range


Current Range

0-1000A (500A Shunt(s) supplied)

Power Consumption (Sleep)

<5mA (with CAN active <25mA)

Overall Dimensions

90 x 110 x 32 MM (3.54 x 4.33 x 1.26 Inches)

Weight (Ex. Cables)

212g (0.47 lbs)


CE marked meeting EMC Directive 2004/108/EC & LVD2006/95/EC complying
with EN60335-1m RoHS 2002/95/EC

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