Information & News

New News
We have began to test the `real` capacity of these cells. It has become very apparent that some are over-rated `fake` lithium-ion 18650 battery cells.
New Is it just size?
Some might say that buying a cell that is simply over-rated, in terms of its capacity, is OK. But, what they don't fully understand is, that the safety implications for using such cells is immense.
New Protection boards
The charging and discharging of battery cells is extremely important in any case. But, with lithium-ion cells it is even more important. Reducing the voltage much lower than around 2.9 volts will certainly cause charging problems or maybe kill it.

Over charging the of cells is equally dangerous, as is the speed of the charge and discharge. This is why a protection circuit is incorporated into cells and into groups of cells! Often these protection circuits are completely missing from the fake cells or fake cell packs.






Batteries (and the fakes)

Lithium-ion 18650, Lipo, laptop & tablet battery services and information page.

We offer a new service - testing of lithium-ion 3.7v (18650) battery cells.

New Please contact us if you need your lithium-ion 18650 cells checked

We will check if you have real/fake or working/damaged 18650 cells, including:
  • Stand alone single cells
  • Double, triple and bigger cell packs (2S, 3S etc)
  • Cell packs for drones, R/C and other units
  • Cell packs within laptop and tablet computers
  • Checking for over-heating - we can check this too
  • Weighing the cells - we have data sheets
  • Checking for battery cell protection
  • Checking for physically damaged cells
  • Checking the capacity of the cells
  • Measuring the actual voltage of the cells
  • We understand that many people can test their battery cells for the voltage, but, what about the capacity of the battery? Just because the battery says it has a certain capacity, it doesn't mean that it is genuine! We can test the actual capacity of your battery cells.

  • Multi-meters & Test Equipment


  • You send us your batteries in a stamped, self addressed package with a cheque and we will test, report and return (batteries must be removed from devices):
  • 5 x 18650 batteries - from £2.00 total
  • 10 x 18650 batteries - from £3.00 total
  • 20 x 18650 batteries - from £5.00 total
  • 50 x 18650 batteries - from £12.00 total
  • 1 x tablet battery - from £2.00 total
  • 1 x laptop battery - from £2.00 total
  • 1 x any lithium-ion or Lipo battery - from £2.00 total
  • (Please explain what connector types are fitted and what the batteries were fitted to or to be used for, before sending them to us.)
  • Condition of batteries:
  • Damaged cells will be returned untested.
  • Batteries - the batteries that you send to us will need to be in a good, serviceable and safe condition for us to test and packed well too.
  • Package - you supply us with your batteries and tell us what you need us to do. You also supply a stamped self-addressed package (for us to return them to you) and enclose payment (we can provide details when asked).
  • Charging service - this service is solely to do with the charging of battery cells.
  • Capacity and identification service - this service is solely to do with the capacity and condition of your battery cells (are they fake/real and are they safe).
  • Safety - safety is key with us. We fully understand that you may purchase a battery that may not be anywhere near its full stated capacity, but the missing protection is more important!
  • Equipment - At some point we will be selling the equipment for you to check your own batteries; both for charging and testing.
  • Legal bit - We will only be providing you with the details based upon what we see and test. Batteries do lose their capacity over time through the charging and discharging process. It is also not good practice to either over charge or fully discharge these types of batteries. We may not be able to determine if the batteries were real or fake, if they were purchased a long time before or if they have been heavily used over time.
  • Capacity testing - it doesn't necessarily follow that the more expensive the battery/batteries are, the better they are. Neither does it necessarily follow that they are any more real than cheaper batteries!

    We will eventually build up our own online database with photographs of batteries and the specific measurements that we found, including: brand (if known), claimed and actual capacity, weight and the images that we produce.

    Battery Safety Guidelines

    Lithium polymer or Lipo batteries are commonly used these days in a wide range of radio controlled (RC) applications such as, Model Planes, Drones, RC cars etc. They are also used in laptop computers, mobile phones, tablet computers and many other devices.

    If you use a Lipo battery you need to be aware of how to handle these batteries safely to avoid any injury. Using a Lipo battery incorrectly will create a high probability of property damage, collateral damage, and potentially cause the battery to catch fire causing serious injury.

    How to handle Lipo batteries safely 

    Lipo batteries are fairly robust however, they can also be fairly fragile if mishandled . Most of this is common sense, but below are a few points to help you.

    • Never alter, puncture or impact Batteries or related components.
    • Never keep sharp objects near Lipo cells. This may cause a hole in the pack and can lead to a fire.
    • Never immerse the battery in water or allow it to get wet.
    • Avoid dropping batteries, dropping Lipo cells can cause the battery cell to crush causing an internal short which which may lead to fire.
    • Never put batteries in your pocket or non fireproof bags this may cause the battery to short circuit.
    • Never store batteries inside a Vehicle.
    • Never directly connect the terminals with metal objects. This will short-circuit Batteries, resulting in heat and electrical discharge.
    • Never store loose Batteries together, the Batteries’ terminals may contact one another causing a short circuit.
    • Never expose Batteries to extreme temperatures or direct sunlight. The temperature range must be between 40-120° F (4-49° C).
    • Heat kills Lipo cells, the hotter a batteries get, the shorter the lifespan will be. Never charge a battery that is still warm after usage, and never use a battery that is still warm from charging.
    • Always verify voltage of Batteries before use this is especially important for packs that have been out of service for greater than six (6) months.
    • Always charge/store Batteries in a non-conductive, fireproof container or bag.
    • For best practice store standard Lipo batteries at 3.80 volts +/- .05 volts per cell. Or at the manufacturer's suggested storage voltage for non standard chemistry's (Lifepo4, Lihv)


    • Always ensure you are using the correct charger for the specific battery type you are trying to charge. Example: If you are charging a Lipo battery, only use a charger designed for Lipo batteries. If the charger can support different battery types, ensure you select the correct type. Failure to do so may cause a re, which may result in personal injury and property damage.
    • Always charge batteries at a rate of 1c (one (1) times the capacity unless specified by the manufacturer.
    • Always use a compatible balanced mode charger, specifically designed for the chemistry of battery you are using.
    • Always charge Batteries in an open area away from flammable materials, liquids and surfaces.
    • Never charge Batteries inside of the model.
    • Never charge the battery inside a Vehicle.
    • Never charge Batteries that are too hot to the touch (above 100° F). DO NOT handle Batteries until they are cool.
    • Never charge a battery that shows signs of puffing.
    • Never charge a battery pack that has been punctured or damaged.
    • Never let the positive and negative battery leads touch each other. It can lead to cell ballooning, cell damage,  fire or an explosion.
    • Always set the charger to proper cell count and/or voltage listed on Batteries’ labels.
    • Always charge batteries at a rate of 1c (one (1) times the capacity unless specified by the manufacturer
    • Always check the voltage of Batteries before each charge session in order to ensure they are at or above the minimum safe starting voltage. If starting voltage is below recommended levels than Batteries have been over discharged or have experienced a failure and should NOT be charged
    • Never overcharge Batteries beyond the capacity listed on Batteries labels.
    • If you notice your Lipo battery pack is swelling while charging, stop the charging process immediately, put the battery in a safe container and observe it.


    • Never discharge Batteries at amperage rates higher than specified on Battery labels.
    • Never allow the temperature of Batteries to exceed temperatures advised by the manufacturer.
    • Never discharge Batteries to voltage below which they are rated by the manufacturer when measured under load (connected to the vehicle or a charger capable of discharge). Batteries discharged to a voltage lower than the lowest approved voltage may be damaged, resulting in loss of performance and potential fire when Batteries are charged.
    • When storing your batteries use a voltmeter to ensure they are at the correct storage voltage, if the volts are +/- the voltage rate connect it to your charger and select “storage mode” and charge/discharge accordingly.
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