Battery shapes and sizes explained

[mylesillidge]

Why there are so many different types of battery shapes and sizes

If you’ve looked in your utility drawer lately, you may have noticed the various shapes, sizes and types of batteries that power your electronic devices.

First, there are the round, non-rechargeable button cells for your watches and small items. There’s also the popular AA and AAA cylindrical batteries for calculators, clocks and remotes.

 

[ThinkCentre]

Nice history lesson!

 

[Dups!]

Hayikhona @mylesillidge!

You have too much time on your hands.

What in the name of energy is this?

 

[Johand]

Cool article. It would be nice having a follow up article on EV batteries because there is a lot of misinformation about them. It would be nice on a deep dive on battery management including thermal management, life expectency, charge and discharge curves, internal resistance and the innovations like tabless designs. And different chemistries.

In fact probably it would be a good idea to register mybattery.co.za

 

[richjdavies]

Plenty more to unpack here...
Like lithium fe vs lithium ion. Sodium batteries etc.

Why Tesla have moved from one size to another etc...

 

[FiestaST]

Sometimes a battery tester is needed.

 

[DapperDanMan]

In fact probably it would be a good idea to register mybattery.co.za

www. MyBB Battery . co . za

 

[geezer]

Something I learned many years ago regarding some button cell batteries for example the ever so popular CR2032 one. The first two digits "20" means the battery's diameter is 20mm and the last two digits "32" means the battery's thickness is 3.2mm. Knowing this may help you out in an emergency if you for example need a CR2032 but you can only find a CR2025, means that you can use that one in an emergency by making use of an appropriate spacer to keep it firmly in place. That's because the diameter is the same, only the thickness differs, the one you could get hold of is 2.5mm and the one you actually need is 3.2mm thick.

 

[Swa]

Skips over NiMH. Only the first old type NiCd had a true memory effect, the rest that came after was just degradation. A lot of Lithium cells are not cylindrical.

 

[Sapphiron]

This is why we have so many types of batteries.