18650 Battery Store has
Epoch 25P 18650 2500mAh 20A Lithium Ion Battery on sale for
$0.99. Shipping starts at $5.81.
Thanks community member
Talysdaddy for sharing this deal
Note, in order to maximize savings, it is recommended that you order multiple quantity to help offset shipping costs.
About this Product (per product page):
- User must be familiar with handling lithium ion batteries before purchase
- Charge only with a smart charger designed for this specific type of lithium ion battery
- Do not mix and match old and new, used and unused batteries.
Top Comments
106 Comments
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Our community has rated this post as helpful. If you agree, why not thank jottect
Problem: if you use unprotected batteries in flashlights, because they do not have a protection against over discharge, they won't stop working when battery voltage drops to 2.8V or more, hence this is a risk that can lead to melting, swelling, short circuit and explosion/fire. So, for a flashlight it is highly recommended to use protected batteries, especially if the one using it is not aware of risk involved with Li-Ion batteries.
Unprotected 18650 batteries (like this one here) can be used in devices that are able to monitor the battery and stop working when voltage reaches usually ~3.2V. This usually happens in laptops, notebooks, cell phones and vaping devices.
This battery here is suitable for vaping or home projects (eg. buy 30 of them and redo your e-bike battery).
I have bought in the past from battery store and all my experiences were nice. Their products are good quality for specified purpose.
I bought some EPOCH (30P and HJ2 model) and they work really well in my vaping devices for more than a year now.
This here is a great deal and this model it is more "power" oriented than "longevity".
If I won't have enough batteries in my vaping cycle (just counted 14), I would buy at least 4 of those.
Problem: if you use unprotected batteries in flashlights, because they do not have a protection against over discharge, they won't stop working when battery voltage drops to 2.8V or more, hence this is a risk that can lead to melting, swelling, short circuit and explosion/fire. So, for a flashlight it is highly recommended to use protected batteries, especially if the one using it is not aware of risk involved with Li-Ion batteries.
Unprotected 18650 batteries (like this one here) can be used in devices that are able to monitor the battery and stop working when voltage reaches usually ~3.2V. This usually happens in laptops, notebooks, cell phones and vaping devices.
This battery here is suitable for vaping or home projects (eg. buy 30 of them and redo your e-bike battery).
I have bought in the past from battery store and all my experiences were nice. Their products are good quality for specified purpose.
I bought some EPOCH (30P and HJ2 model) and they work really well in my vaping devices for more than a year now.
This here is a great deal and this model it is more "power" oriented than "longevity".
If I won't have enough batteries in my vaping cycle (just counted 14), I would buy at least 4 of those.
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What you need to make sure for flashlights is that there is a over discharge protection in the light that will safety stop the light after dropping past 2.8v. Again, all good branded flashlights will have this protection circuit. What people need to do when considering high output flashlights is to look up several reviews of them. If you can't find a reviews of the item (specifically youtube and budgetlightforums), pass on the light. It's probably garbage.
That does not mean that somebody with some level of skill cannot replace the cells in a sealed system.
If you can figure out how to open the case.. (Sometimes it is screwed together and sometimes it is glued in some spot)..then you will find that the batteries are usually connected via some nickel strips.
Some people solder new cells in to replace the dead cells. I have a little, very inexpensive unit that can spot-weld new cells. If you Youtube it, you will see that some people have built a spot weld device with a lawn mower/motorcycle battery. I imagine that you can do it with a car battery too.
It only takes about 1 tool or laptop battery to have the whole setup pay for itself.
What you need to make sure for flashlights is that there is a over discharge protection in the light that will safety stop the light after dropping past 2.8v. Again, all good branded flashlights will have this protection circuit. What people need to do when considering high output flashlights is to look up several reviews of them. If you can't find a reviews of the item (specifically youtube and budgetlightforums), pass on the light. It's probably garbage.
other times while technically not required you can't access the full lumen ramp and only be able to get half or less of what the light is capable of outputting. that leads to complaints. then people angry for whatever reason on. it understanding protected and unprotected.
That does not mean that somebody with some level of skill cannot replace the cells in a sealed system.
If you can figure out how to open the case.. (Sometimes it is screwed together and sometimes it is glued in some spot)..then you will find that the batteries are usually connected via some nickel strips.
Some people solder new cells in to replace the dead cells. I have a little, very inexpensive unit that can spot-weld new cells. If you Youtube it, you will see that some people have built a spot weld device with a lawn mower/motorcycle battery. I imagine that you can do it with a car battery too.
It only takes about 1 tool or laptop battery to have the whole setup pay for itself.
Back in stock.
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