Test/review of E-Stream ES18650-29MP 2900mAh (Green) 2021

10 posts / 0 new
Last post
HKJ
HKJ's picture
Offline
Last seen: 17 hours 43 min ago
Joined: 05/24/2011 - 12:23
Posts: 7433
Location: Copenhagen, Denmark
Test/review of E-Stream ES18650-29MP 2900mAh (Green) 2021

E-Stream ES18650-29MP 2900mAh (Green) 2021
DSC_4634
Official specifications:


  • Capacity Nominal: 2900mAh
  • Capacity Minimum: 2750mAh
  • Nominal Voltage: 3.7V
  • Discharge cut-off voltage: 2.75
  • Maximum charge voltage: 4.2V
  • Intern impedance: <=28mOhm
  • Standard charge current: 1.425A
  • Standard charge cut-off current: 142.5mA
  • Maximum continuous charge current: 2.9A
  • Maximum pulse charge (
  • Standard discharge current: 2.85A
  • Maximum continuous discharge current: 10A (With 60°C cut-off)
  • Maximum pulse (
  • Cycle life: 1000 cycles to 80%

E-Stream%20ES18650-29MP%202900mAh%20(Green)%202021-info
A 2900mAh LiIon battery with moderate current rating.
DSC_4633
DSC_4635 DSC_4636
DSC_4637
DSC_4638
E-Stream%20ES18650-29MP%202900mAh%20(Green)%202021-Capacity
The two cells is fairly well matched and the cells can deliver the rated 10A
E-Stream%20ES18650-29MP%202900mAh%20(Green)%202021-Temp-7.0
E-Stream%20ES18650-29MP%202900mAh%20(Green)%202021-Temp-10.0
E-Stream%20ES18650-29MP%202900mAh%20(Green)%202021-Temp-15.0
E-Stream%20ES18650-29MP%202900mAh%20(Green)%202021-CapacityTimeHours
E-Stream%20ES18650-29MP%202900mAh%20(Green)%202021-CapacityTime
E-Stream%20ES18650-29MP%202900mAh%20(Green)%202021-Energy
E-Stream%20ES18650-29MP%202900mAh%20(Green)%202021-PowerLoadTime
E-Stream%20ES18650-29MP%202900mAh%20(Green)%202021-TripCurrent
E-Stream%20ES18650-29MP%202900mAh%20(Green)%202021-Charge
Discharge-E-Stream%20ES18650-29MP%202900mAh%20%28Green%29%202021-pulse-1.0%2010%2010-IR
Conclusion
The batteries looks fine, they do not set any records in either capacity or current, but are more average.
Notes and links
The batteries was supplied by E-Stream 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
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries

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

Henk4U2
Henk4U2's picture
Online
Last seen: 12 min 27 sec ago
Joined: 02/13/2014 - 17:52
Posts: 4127
Location: The heart of the Netherlands (GMT+1)

Thanks for your review. Would only buy these cells if their price was below average.

You are a flashaholic if you are forced to come out of the closet, to make room for more flashlights.

Oli
Offline
Last seen: 1 hour 34 min ago
Joined: 08/03/2018 - 21:03
Posts: 527
Location: United States
spec.. 1000 cycle life.. 2.9 amp charging.. Those two numbers are way above average. They are claiming the charging rate is above the standard discharge rate.?
HKJ
HKJ's picture
Offline
Last seen: 17 hours 43 min ago
Joined: 05/24/2011 - 12:23
Posts: 7433
Location: Copenhagen, Denmark
Oli wrote:
spec.. 1000 cycle life.. 2.9 amp charging.. Those two numbers are way above average. They are claiming the charging rate is above the standard discharge rate.?

A maximum charge rate of 1C is nothing special. The 1000 cycles is higher than the usually 400-500 cycles.

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

Shadowww
Offline
Last seen: 14 hours 43 min ago
Joined: 01/20/2012 - 19:09
Posts: 1343
Location: Northern Europe
HKJ wrote:
The 1000 cycles is higher than the usually 400-500 cycles.

How believable is that claim from a fairly no-name manufacturer?

IIRC Panasonic has some 3000 cycle rated cells, however they have very interesting discharge/charge specifications (e.g. charging termination voltage is just 4.05V or something weird like that).

Superstocker
Superstocker's picture
Offline
Last seen: 8 hours 6 min ago
Joined: 11/28/2018 - 21:22
Posts: 305
Location: United States, Virginia

Thanks HKJ!

Oli
Offline
Last seen: 1 hour 34 min ago
Joined: 08/03/2018 - 21:03
Posts: 527
Location: United States

Ok 30Q as a Max charge rate of 4 amps so yeah 2.9a is nothing special for a 3000mha 18650

HKJ
HKJ's picture
Offline
Last seen: 17 hours 43 min ago
Joined: 05/24/2011 - 12:23
Posts: 7433
Location: Copenhagen, Denmark
Shadowww wrote:
HKJ wrote:
The 1000 cycles is higher than the usually 400-500 cycles.

How believable is that claim from a fairly no-name manufacturer?

IIRC Panasonic has some 3000 cycle rated cells, however they have very interesting discharge/charge specifications (e.g. charging termination voltage is just 4.05V or something weird like that).

You (and I) do not know who manufactured the battery. The reduced performance may be due to the higher charge cycle count, but that is just a random guess.

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

Lux-Perpetua
Lux-Perpetua's picture
Offline
Last seen: 12 hours 57 min ago
Joined: 03/01/2018 - 04:39
Posts: 3196

How are max cycles assessed? If I am not mistaken cycle life will improve significantly if a battery is not fully (dis)charged, e.g. 3.50V - 4.10V.

HKJ
HKJ's picture
Offline
Last seen: 17 hours 43 min ago
Joined: 05/24/2011 - 12:23
Posts: 7433
Location: Copenhagen, Denmark
Lux-Perpetua wrote:

How are max cycles assessed? If I am not mistaken cycle life will improve significantly if a battery is not fully (dis)charged, e.g. 3.50V – 4.10V.

If nothing is specified it is usually using standard charge and discharge, the data sheet for this cell do specify that is the case.

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