Dlyfull Universal Battery Tester with LCD Display, Multi Purpose Battery Checker for AA/AAA C D 9V CR123A CR2 CRV3 2CR5 CRP2 1.5V Button Cell Batteries (Black)

To be honest, I am hopeless when it comes to sorting batteries. I always seem to end up with a pile of part used batteries and I have no clue what state they are in. Throw in the bulk buy batteries from the pound shop that have very limited shelf life that can be flat before you use them. Using a multimeter to check them is quite time-consuming, trying to keep the prods on each end of the battery.This simple little battery checker is just the answer. It arrived promptly and in a nice retail box containing the checker unit and a small set of instructions. It requires a single AAA battery which is supplied and fitted but you need to remove the little tab before using for the first time.The design is very simple with a load of battery compartments for a variety of battery sizes and along the top is an LCD display that shows the battery's condition by using black bars. The more bars shown, the better the battery's condition. It's so easy and I found I checked about 20 batteries in about 2 to 3 minutes. Not only can you test the usual cylindrical 1.5V batteries but also many of the button batteries of both the 1.5V and the 3V variety. Even a 9V PP3 battery can be tested.Overall, this is a great little device, well-made and does what it says on the tin.

Compact, simple to use, easy to figure which batteries fit where for testing. I use a lot of rechargeable batteries, but not all of them all the time, so I need to be able to check which might need recharging. The unit comes complete with AAA battery to power the simple bar-display - up to about 20 bars max, with the display divided into 'poor', 'weak', and 'good' sections. This is not an accurate readout of the voltage or amperage left in a battery, but it does give an informative indication of how much life may be left in it. The manufacturer's instructions say that it gives more accurate readings for alkaline batteries, so you know when one is dead or dying, but nevertheless it's useful for rechargeables, too - compare a recently-recharged battery with one you're not sure about, for instance. The unit accepts a wide range of types and sizes from D to AAA, button batteries, car-remotes, and 9v - pretty much every common battery type. Very useful bit of kit.

A very easy to use battery tester, clearly set out and full of options to test all categories of battery you are likely to use.I would query the accuracy of power measurement though. I had a coin battery that was removed from a car key that had reached the end of its life; it had been in the key for 8 years and the key had stopped functioning. I put a new battery in the car key resolving that issue, yet the old battery tested good in the tester. Given the fact the battery was not sufficiently strong to operate remote central locking, the two do not compute.I got similar results from a C type battery that that had been used in outdoor Christmas lights for 6 weeks and was expended.I suppose once you get to understand the relative measurements of the tester, you will ignore the scale and work out that at a certain level, the battery will be exhausted, but it isn't useful to the lay person simply wanting to know if the battery is good or otherwise.

It needs one AAA battery fitted into its compartment in order to work. What a pity the designers didn't make use of the battery to enable the testing of fuses and bulbs. The battery enables the tester to power the LCD (Liquid Crystal Display). This is a bit of a gimmick because a meter would be nicer and clearer to read. The other disadvantage is that you need to take the battery out to avoid it leaking and destroying the tester if you are not going to use it for a while. So the design gives you the worst of both worlds; two disadvantages without the fuse and bulb testing capability. What were the designers and manufacturers thinking? However it can test D batteries unlike the last tester I bought, a Rolson BT-6. It will test fuses and bulbs but not D batteries. Ditto: what were Rolson thinking when they half designed their tester. You can't win it seems.

This battery tester is great and a must piece of kit to have in your tool kit, things stop working but with this tester you can see if it is the batteries that are failing, Would recommend both this item and seller

Simple and easy to use and it works! We had a box of 'dead batteries'.Nope,we found that halve of the batteries were still good and so we are using the batteries instead of buying some new ones.We tried this on all battery ranges and it work.Simple to use,put the battery in,put the battery in the slot or push it down on the tabs and the digital read out tells you where the battery is at,weak,middle strong,strong charge.

Ironically, the battery supplied with this unit is complete crap. 6 months after purchase, I found it leaking, but fortunately I must have discovered it early, because it had not done any permanent damage. The unit is fit for purpose, but my advice to any purchaser would be to change the battery immediately to a reputable brand. Hence 3 stars only.

So easy to use - put your battery in and it instantly tells you what charge there is left in it.This has already saved me from throwing away perfectly good batteries which I've left rolling around in the bottom of a drawer.There are times when you really need to be certain your battery is full - like when walking the dog by torchlight on a dark road at night, so it gives great peace of mind too.Wish I'd bought this a long time ago. Highly recommended.