These tests below only note my personal opinion for the ESTIMATED ratings for the batteries I tested at the time I tested them. Any battery that is not a genuine Samsung, Sony, Murata, LG, Panasonic, Molicel, EVE, Ampace, Reliance, Sinowatt, Lishen, BAK, or Sanyo can change at any time! This can be one of the hazards of using “rewrapped” or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.
Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of property damage, personal injury, or even death. Never use them outside of a fully protected battery pack and you use them at your own risk. Never exceed the battery’s true continuous discharge rating (CDR), never let it get colder than 0°C or hotter than 60°C to help lower the risks and extend cell life, and keep the plastic wrap and top insulating ring in perfect condition. Never use a battery that is physically damaged in any way.
Testing batteries at their limits is dangerous and should never be attempted by anyone who has not thoroughly studied the dangers involved, understands the risks, has the proper equipment, and takes all appropriate safety precautions.
If the battery has only one current rating number, or if it only says "max", then I have to assume the battery is rated at that current level for any type of discharge, including continuous.
Test Results
This is a decent performer at low to moderate power levels. It equals the other China 2500mAh cells but the Samsung 25R8 is just a little bit better. I don’t think we’d notice the difference. The EVE 25P is often sold at a lower price though and can be a good cell to consider when cost is a top priority.
Some more info…
Continuous Current Discharge Graphs
Ratings and Performance Specs Graphic
18650/21700 Ratings & E-Scores and Recommended Batteries Tables:
The links are in my public Patreon pinned post: https://www.patreon.com/posts/pinned-post-137974946
I want to work for the community full time! If you feel what I do is worth a couple dollars a month and you would like early access to battery availability, battery testing and news, and a say in what I test, then please consider becoming a patron and supporting my testing efforts: Get more from Battery Mooch on Patreon.
Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of property damage, personal injury, or even death. Never use them outside of a fully protected battery pack and you use them at your own risk. Never exceed the battery’s true continuous discharge rating (CDR), never let it get colder than 0°C or hotter than 60°C to help lower the risks and extend cell life, and keep the plastic wrap and top insulating ring in perfect condition. Never use a battery that is physically damaged in any way.
Testing batteries at their limits is dangerous and should never be attempted by anyone who has not thoroughly studied the dangers involved, understands the risks, has the proper equipment, and takes all appropriate safety precautions.
If the battery has only one current rating number, or if it only says "max", then I have to assume the battery is rated at that current level for any type of discharge, including continuous.
Test Results
This is a decent performer at low to moderate power levels. It equals the other China 2500mAh cells but the Samsung 25R8 is just a little bit better. I don’t think we’d notice the difference. The EVE 25P is often sold at a lower price though and can be a good cell to consider when cost is a top priority.
Some more info…
- These CCC-logo 25P’s run for a bit longer and at a slightly higher voltage than the non-logo versions I tested 3-1/2 years ago.
- The datasheet only has a 30A “Max continuous discharge” rating with a 80°C max cell surface temp limit. EVE says you can run it at up to 30A but you must stop before the cell reaches 80°C.
- There’s a lot of voltage sag at 30A though so don’t think you can run these like they are high-performance power cells. They are great cells for 15A and lower though.
- I estimate the true continuous current rating (down to 2.5V) to be about 15A or a bit higher.
- Its DC IR is about 21.0mOhms which is pretty typical for the 2500mAh 18650’s
- This cell has the CCC*** logo indicating compliance with that new testing standard so these are recently made cells.
Continuous Current Discharge Graphs
Ratings and Performance Specs Graphic
18650/21700 Ratings & E-Scores and Recommended Batteries Tables:
The links are in my public Patreon pinned post: https://www.patreon.com/posts/pinned-post-137974946
I want to work for the community full time! If you feel what I do is worth a couple dollars a month and you would like early access to battery availability, battery testing and news, and a say in what I test, then please consider becoming a patron and supporting my testing efforts: Get more from Battery Mooch on Patreon.
