Test/review of Ebat 20700 3000mAh E7-20P30 (Blue)

4 posts / 0 new
Last post
HKJ
HKJ's picture
Online
Last seen: 11 min 43 sec ago
Joined: 05/24/2011 - 12:23
Posts: 5261
Location: Copenhagen, Denmark
Test/review of Ebat 20700 3000mAh E7-20P30 (Blue)

Ebat 20700 3000mAh E7-20P30 (Blue)

DSC_0342

Official specifications:


  • Model: E7-20P30
  • Normal voltage: 3.7V
  • Normal capacity: 3000mah
  • Charging voltage: 4.2V ± 0.5V
  • Discharging cut-off voltage: 2.5V
  • Discharge rate: 40A
  • Rechargeable: Yes
  • Size: 18±2mm Dia 70±1mm Length
  • Cycle life: > 500 times
  • Operation Temperature Range: Charge(0~45°C ) Discharge(-10~60°C )

Ebat%2020700%203000mAh%20E7-20P30%20(Blue)-info

Ebat also have a battery in the new size 217100, capacity is not that high, but it can deliver lot of current.

DSC_0341

DSC_0343DSC_0344

DSC_0345
DSC_0346
DSC_0347

Ebat%2020700%203000mAh%20E7-20P30%20(Blue)-Capacity

The discharge curves looks good with nice matching between the two cells and nearly constant capacity at any current.

Ebat%2020700%203000mAh%20E7-20P30%20(Blue)-Temp-15.0

Ebat%2020700%203000mAh%20E7-20P30%20(Blue)-Temp-20.0

Ebat%2020700%203000mAh%20E7-20P30%20(Blue)-Temp-30.0

At 30A the battery gets warm, but not too warm, i.e. it can handle the current.

Ebat%2020700%203000mAh%20E7-20P30%20(Blue)-CapacityTimeHours

Ebat%2020700%203000mAh%20E7-20P30%20(Blue)-CapacityTime

Ebat%2020700%203000mAh%20E7-20P30%20(Blue)-Energy

Ebat%2020700%203000mAh%20E7-20P30%20(Blue)-PowerLoadTime

Ebat%2020700%203000mAh%20E7-20P30%20(Blue)-TripCurrent

Ebat%2020700%203000mAh%20E7-20P30%20(Blue)-Charge



Conclusion

This is a nice high current battery and the slightly large size compare to a 18650 can be seen on the improved performance.
This battery is mostly for people that needs well above 10A, for lower currents look at a 18650.


Notes and links

The batteries was supplied by EBat for review.

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Compare to 18650 and other batteries
Compare to 26650 and other batteries

My website with reviews of many chargers and batteries (More than 1000): http://lygte-info.dk/

DavidEF
DavidEF's picture
Offline
Last seen: 1 day 12 hours ago
Joined: 06/05/2014 - 06:00
Posts: 4899
Location: Salisbury, North Carolina, USA

30A continuous is good. But, the 3000mAh capacity is a bit disappointing.

Reason is not automatic. Those who deny it cannot be conquered by it. Do not count on them. Leave them alone.
-Ayn Rand

Henk4U2
Henk4U2's picture
Offline
Last seen: 19 min 10 sec ago
Joined: 02/13/2014 - 17:52
Posts: 1540
Location: The heart of the Netherlands (GMT+1)

Thanks for your review. I always keep an eye open for them.
Especially when it concerns batteries with dimensions 20700 and 21700.

will34
will34's picture
Offline
Last seen: 12 hours 39 min ago
Joined: 12/18/2012 - 00:12
Posts: 3171

Thanks for the review. Nice to see more 20700 batteries come to the market.