This is the battery holder for a XANES bicycle headlamp bought from Banggood. It’s rarely a good thing to leave a Li-ion battery of any kind on charge so I never leave my stuff charging or forget about something that’s put on charge. So take care in following my tip to use random cells. Other cells may not have this circuit perhaps because the laptop, or the charger for example, has the circuit anyway. A cell with a button top might be a protected cell. Take care: Li-ion cells may have internal circuits to shut them down if they are overcharged or overheat or draw too much power. And even though they’re mostly called Li-ion cells, those 18650 cells may use different chemical inside to suit the different ways that they are used. Not surprisingly you need differently specified batteries for a laptop, vape mod, electric car, shaver, power bank, electric drill, a garden mower and so on. The batteries are the same size but they vary in how much charge they hold, how many Watts they can deliver and how suddenly they can do that. Some have button tops for convenient swapping as we’re all used to doing. ![]() They can come with or without metal tags (to attach wires). Most of the 18650 batteries that I’ve reclaimed from old laptops have flat tops. This battery is properly called a ‘18650 cell’ as the word ‘battery’ implies that it is more than one cell. The 18650 ‘battery’, like many batteries, is named according to its dimensions. Oh my, that was embarrassing to admit some 18650 Li-ion batteries – one with a tag, two with button tops Visitors this year: 924 I discover my bicycle headlamp wasn’t working because some 18650 batteries have a button top.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |