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Details about  2 x GENUINE Panasonic 3400mAh NCR18650B QUALITY Li-ion Rechargeable Batteries

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2 x GENUINE Panasonic 3400mAh NCR18650B QUALITY Li-ion Rechargeable Batteries
Item Ended
Item condition:
11 Mar, 2013 13:13:21 GMT
Free Economy Delivery | See details
Item location:
Silsden, West Yorkshire, United Kingdom


eBay item number:
Seller assumes all responsibility for this listing.
Last updated on  03 Mar, 2013 02:06:04 GMT  View all revisions
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Item specifics

New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is ... Read moreabout the condition
Brand: Panasonic
Capacity: 3400mAh MPN: Panasonic NCR18650B
Features: Unprotected Type: 18650
Voltage: 3.6v Chemical Composition: Li-Ion
Charge Voltage: 4.2v Quantity: 2
Genuine UK Seller
  2 x GENUINE Panasonic 3400mAh NCR18650B
Unprotected 18650 Li-ion 3.6v Rechargeable Batteries


Pack of 2 x NCR18650B

First and foremost please note these are

Genuine Panasonic 3400mAh NCR18650B
Batteries & TESTED High Capacity!!

These batteries are currently one of the best 18650 batteries on the market at this moment and are in high demand so get them whilst you can.

Genuine Panasonic NCR18650B 3400mAh Li-ion 3.6v Un-Protected Rechargeable Batteries UK Stock

Only need to be charged to 4.2v for full capacity!

These batteries are the real deal !! they are GENUINE PANASONIC 18650 cells (Part# NCR18650B) and are one of the highest capacity 18650 batteries on the market at the moment.

Unlike the other brands such as Samsung these Panasonic NCR18650B batteries only need to the charged to 4.2v to achieve full capacity so you do not have to go out to buy a new charger as all good chargers will charge to 4.2v. (Samsung 2800mAh requires 4.3v and Samsung 3000mAh requires 4.35v)

They are un-protected 3.6v Li-ion rechargeable batteries and are rated by Panasonic to have a 3400mAh capacity (3400 mAh at 0.5A discharge current /  3200 mAh at 3A discharge current / 3150 mAh at 5A discharge current).

We have tested these cells with a 1A discharge and in our tests they achieved a very impressive 3225mAh - 3234mAh which is higher than anything else we have tested to date (see test data below). We do our tests with a 1A drain which is a more realistic drain test than what some of the manufacturers actually do their tests at, this means the capacity we state is what you are likely to achieve in use. These cells are therefore of a very high quality and are a great improvement even over the Panasonic NCR18650A (3100mAh) which is itself a great battery and compared to nearly all other cells on the market they will outlast them buy quite some distance.

Genuine Panasonic NCR18650B 3400mAh Li-ion 3.6v Un-Protected  Rechargeable Batteries UK Stock

These Panasonic NCR18650B batteries are un-protected which means they do not have any form of PCB (Protection Circuit Board) built in to them and are ideal for use in a variety of situation including battery packs, flashlights, power banks and chargers etc. The working voltage of these cells is between 4.2v - 2.5v and as there is no protection it is important to use a quality charger so they will not over charge. To look after your cells it is important not to take them too low so if you are using them in a flashlight make sure once the light begins to dim you charge the batteries and do not leave them in a flat state for long periods. Some people prefer un-protected cells whereas others prefer a protected cell but it depends on what you are using them for. We sell both types so for protected cells please check our other auctions.

Genuine Panasonic NCR18650B 3400mAh Li-ion 3.6v Un-Protected  Rechargeable Batteries UK Stock

Please see the photo above and note these are flat top batteries so ensure they will make a contact in your chosen device, most devices do have some protruding contact but please check this to ensure they will fit.

Pack of 2 x NCR18650B
If you require different quantities please Check our other auctions.

  • Battery Type: 18650 UnProtected in Li-ion Rechargeable 3.6v battery
  • Capacity: 3400mAh (Tested by us 3225mAh & 3234mAh @ 1A)
  • Charge voltage: 4.2V +/-0.05
  • Discharge voltage: 2.5V
  • Size: 18.3 ±0.1mm x 65.0 ±0.5
  • Weight: 45g
  • Maximum Discharge Current: 2C / 6800 mAh

Package Includes:

2 x (2pcs) Brand New Genuine Panasonic NCR18650B 3400mAh Li-ion Rechargeable Batteries

Genuine Panasonic NCR18650B 3400mAh Li-ion 3.6v Un-Protected Rechargeable Batteries UK Stock

All goods will be sent out well packaged and posted once payment has been made.

Battery Testing

Below are the results of our recent discharge capacity test carried out on these batteries at a discharge rate of 1A, we do this simply to check for ourselves the actual capacity of the batteries we sell and can confirm these are excellent batteries as we were impressed with their performance. Please note the tests were carried out at around 22 degrees and the cells were only taken to 2.75v (so not full capacity).

The results:

Genuine Panasonic NCR18650B  3400mAh Li-ion 3.6v Un-Protected  Rechargeable Batteries UK Stock

A good review on the batteries can be found here:

lygte-info.dk NCR18650B Review

Also to see just how good these are compared to other cells on the market a comparison can be found here:

lygte-info.dk 18650 Comparison

Some general tips on how to look after your new Li-ion batteries:

  1. Buy a quality battery charger! - (buy a quality brand such as Xtar as these are all SAFE!....
    This will ensure safe charging of your batteries and proper termination preventing over charging and on some very poorly made chargers even fire. THIS IS VERY IMPORTANT!
    It will also ensure you batteries are looked after and last you longer.

  2. Do not leave your batteries sat on charge once charging has finished.....
    Quality chargers will stop charging when they reach 4.2v others do not and continue to apply current to the battery, so it is always a good idea to remove your batteries so no further charging happens, this will ensure they last a long time. (again buy a quality charger to achieve this!)

  3. Do not drain your batteries too low - it will not do them any good....
    Squeezing that last bit of energy out of your batteries is not the best idea. Li-ion batteries are usually around 3.7v and as the charge in them drops so does the voltage, also as they are charged the voltage goes up (they are usually between 2.5v - 4.2v) they do not like to get too high a voltage or too low a voltage it damages the cells and anything outside of this scope can cause them to become unsafe, if using unprotected cells do not let them get below 2.5v, if you notice them seeming weak - charge them! for those few extra minutes use you could take months off the battery's life.

  4. If your battery runs out of charge charge it! - do not leave it in uncharged for long..
    If Li-ion batteries are left uncharged for long periods the voltage in them becomes too low and it can be dangerous when charged again so if they run out of juice charge them or if you plan on storing them for long periods apply a storage charge (around 50% is good), if they have PCB (protection circuit) you may find if they get too low the PCB disables them as it renders them too low and unsafe to use again, they are then unable to be brought back to life.

  5. Li-ion batteries are not like the 'old type' of batteries which needed to be fully charged then fully drained...
    Li-ion batteries have no memory effect and do not need to be fully discharged before you recharge them. Extreme charging and over charging can damage them and also draining them too low, with a good PCB this should not happen but unlike old batteries it is totally fine to charge them if they become a little low even if they are not fully discharged as it will have no negative effect on the battery and is better than totally draining them.

  6. Handle your batteries with care are and try not to drop your batteries.
    Avoid damaging your batteries and handle them carefully, don't drop them as with all electrical products the circuits can become damaged and this is not a good thing.

  7. Do not let your batteries get too hot or too cold.
    Li-ion cells seem to work best around 27 degrees C, when they get hotter they perform better as heat lowers the internal resistance but this stresses the battery. Cold temperature increases the internal resistance which diminishes the capacity. Batteries that would provide 100 percent capacity at 27°C (80°F) will typically deliver only 50 percent at –18°C (0°F).


Delivery is from the UK and will be sent out usually within a day of payment being made,
if payment made before 4pm the goods will be sent out the following day.

Warranty / Returns

All goods come with a 14 day no hassle returns policy, if you are not happy with them for any reason you can send them back for a full refund as long as they are in original unmarked condition (buyer pays return postage unless goods faulty).

If the goods are faulty a replacement will be sent or a refund which ever you prefer.
All goods are supplied direct to me from the manufacturer so come with their full manufacturer's warranty.

Please note this item is IN STOCK and sold by a GENUINE UK seller.
(If you click the feedback for a seller it tells you their true location)

These goods are IN THE UK NOW !!!

Why is this important?
This means any VAT and duty has already been paid !!

If you buy direct from and none EU country (e.g. China) any item over £15.00 is liable for VAT (at 20%) and may also include a duty charge and additional fee from the delivery company (this fee alone can be as much as £13.00) and also delays of up to 3 weeks for processing.

Any VAT and/or duty has already been paid on these items !!
This takes away any worry from you, so you have the safety of knowing you will not
have a nasty shock when your 'bargain' item arrives.


Fast UK Dispatch

Business seller information

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Returns policy

Return policy details
All goods come with a 14 day returns cooling off period. If you wish to return the goods for any reason you can do so within the first 14 days for a full refund of the goods total. You will receive a refund for the price of the goods (excluding postage if applicable). It is your responsibility to ensure the goods are returned safely and the cost of returning the goods must be paid by the purchaser. All items must be unused and unmarked and returned in perfect new condition with no signs of use and if batteries are returned they must not have been charged or marked in any way. Any faulty items can be returned and replacements will be sent out at our cost or refunded in full (whichever you wish), other items may carry a manufacturer guarantee (see listings for details)
Most purchases from business sellers are protected by the Consumer Contract Regulations 2013 which give you the right to cancel the purchase within 14 days after the day you receive the item. Find out more about your rights as a buyer - opens in a new window or tab and exceptions - opens in a new window or tab.

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