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Specialist in Multirotor Tech & FPV Equipment

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Digital Battery Capacity Checker

CellMeter-7 Digital Battery Capacity Checker for LiPo LiFe Li-Ion NiCd and NiMh


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PDF icon Operating Instructions1.08 MB

Don’t risk your multirotor by flying on depleted batteries, this great little battery capacity checker puts an end to guessing how much flight time you have left in your batteries. It can be used to check the battery voltage of Lithium batteries including LiPo, LiFe, Li-Ion, as well as NiMH and NiCd batteries. For lithium types the checker will measure the voltage of both individual cells and full battery voltage, and can also indicate the highest voltage cell, lowest voltage cell and difference between, as well as display the percentage of battery capacity remaining.

Checkout the NEW CellMeter-8 for the additon of Sero / ESC tester and Storage discharge functions.

  • High Visibility LCD Display Screen
  • Battery Type: Lithium Polymer (LiPo), Lithium Iron (LiFe), Lithium Ion (Li-Ion), Nickel-Metal Hydride (NiMH) and Nickel-Cadmium (NiCd) batteries
  • Cell Number: NiCd / NiMH (4 - 7 Cells), Lithium Type (2 - 7 Cells)
  • Size: 84x50x16mm

Display Modes:

  • Battery cell voltages
  • Total voltages
  • Lowest cell voltage
  • Highest cell voltage gap between highest cell voltage and lowest cell voltage
  • Remaining battery capacity(%)


  • 1 x CellMeter-7 Digital Battery Capacity Checker
  • 1 x User Manual

Please note that for NiCd and NiMH, the checker will only display the total voltage of NiCd and NiMH batteries.

Please note also, that for Lithium batteries the cell checker will only accept standard JST-XH balance connectors.

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A LiPo alarm / tester is a must have piece of equipment for any flight box. LiPo batteries require careful management to maximise their life; they can be charged up to 4.20V and discharged down to 3.0V per cell. Any lower or higher in voltage and the cell will almost certainly be irreversibly damaged (reduced capacity or total inability to accept a charge). Furthermore, a damaged cell may become unstable which can be very dangerous (increased fire risk). A LiPo alarm / voltage tester is therefore an essential piece of kit to monitor the status of your individual cells and avoid damaging them. Most pilots who fly without a telemetry feed use a LiPo Alarm on board their craft to alert them as to when it's time to land - it's recommended to set your alarm to 3.6V to give you enough time to land safely.

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We are partnered with several delivery companies including Royal Mail, DHL, APC and Parcel Force. If you have a special delivery requirement or would like to arrange a shop collection please contact us. For small low value orders our cheapest delivery service is Royal Mail First Class; this service aims to deliver the next working day including Saturdays and it can be sent recorded for extra peace of mind – please note this is not a guaranteed next day delivery or trackable service.

For a guaranteed next day delivery we recommend Royal Mail Special Delivery or one of our courier delivery options. Royal Mail Special Delivery will arrive by 1PM the next day and for an extra fee can be delivered on Saturdays. APC Overnight offers next day delivery with full tracking and a 2hr time slot pre-delivery text notification. DHL is a good option for larger consignments and remote locations such as Northern Ireland and Isle of Man. All high value orders are fully insured and will likely require a signature on delivery.

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