HKJ
(HKJ)
October 19, 2013, 3:56pm
1
Tensai D TR-D10000 10000mAh (Green)
Official specifications:
Manufacturer: TENSAI
Size: D , LR20
Chemistry: NiMH (Nickel Metal hydride)
Nominal Voltage: 1.2V
Capacity: Minimum: 9000mA, Typical: 10000mA, When discharged at 0.2C to 1.0V at 20°C
Fast Charge: up to 4500mAh
Service Life: >500 cycles
Internal Resistance: <20mOhm (upon fully charged)
Diameter (mm): 33.0
Height (mm): 61.5
Weight: 163g
Maximum temperature raise at different discharge currents: 1A:+0,0°C, 2A:+0,0°C, 3A:+0,7°C, 5A:+2,2°C, 7A:+5,6°C, 10A:+9,6°C
This is nice discharge curves.
Conclusion
Being the first NiMH D cell I test, I cannot say much about it, compared to other D cell.
But I do like the 10Ah capacity.
Notes and links
Note: I have updated this review, because I had some faulty 15A & 20A curves, my current equipment cannot handle 20A below 1.2 volt.
How is the test done and how to read the charts
flydiver
(flydiver)
October 19, 2013, 4:49pm
2
It’s good to know there may be viable competition in the narrow D-cell field.
If the reliability turns out to be decent these may be a real find.
seriously, looks like great batteries.
Without knowing about self discharge though. Any plans to test that HKJ?
Wish there was a US distributor.
HKJ
(HKJ)
October 19, 2013, 5:30pm
4
No, but it is not low self discharge. Tensai does also have some LSD D cells with 8000mAh and I am going to test them, but not the LSD aspect.
That is quite impressive. Good cells.
HKJ
(HKJ)
October 20, 2013, 6:14am
7
Flomotion:
Maybe I missed it …
From a German manufacturer called Enerpower, they have a shop called http://store.enerdan.de/ but the batteries are not in it yet.
Flomotion
(Flomotion)
October 20, 2013, 7:42am
8
Might be the same seller, Berlin, Germany:
http://www.ebay.com/itm/4-x-Tensai-10000-mAh-D-Size-Rechargeable-Batteries-LR20-HR20-MN1300-MONO-/261271417181?pt=UK_ConsumerElectronics_Batteries_SM&hash=item3cd4fd715d
Also, there is this US Seller for Tenergy:
http://www.all-battery.com/technimh_C_D.aspx
This Link for D cell:
D NiMH Battery Cell - With or Without Tabs. Voltage: 1.2V. Popular for Scooter Packs. Dimension: 60mm x 32mm..Use to make custom battery packs. Ideal for custom devices, robotics, industrial, and more
Price: USD 9.99
Same Company on Ebay:
HKJ
(HKJ)
October 20, 2013, 7:16am
9
Yes, that is the same company.
fyesilova
(fyesilova)
October 20, 2013, 9:12am
10
I was not aware of this brand, thanks HKJ for review.
zelee
(zelee)
October 20, 2013, 11:00am
11
Genius
i mean the battery name is Tensai,it mean genius in english :bigsmile:
flydiver
(flydiver)
October 20, 2013, 7:14pm
12
So….The Tenergy D is the same cell?
There’s a ‘regular’ (blue) and Premium (white)?
HKJ
(HKJ)
October 20, 2013, 6:57pm
13
I cannot answer that.
If I had tested the Tenergy cells, I could take a qualified guess.
Gj1
(Gj)
October 21, 2013, 1:01am
14
Cost about twice as much as Tenergy D's at Ebay. Better be terrific cells if that's representative.
StyXSIS
(StyXSIS)
October 21, 2013, 1:34am
15
Well this is a surprise, i used 10 of these Tensai D’s a month back i think ? to rebuild 2 Tiga 6v batt’s for an old sl9x headtorch that got lost in a box for over 2 years and the cells just died and £432 is Ridiculous! for 2 new ones, when i could just do a recell for £105 that is (same ebay place as flomotion has given i think). The new cell rebuilds are better than expected though, and they last 2hrs more on high than the old ones did on high so the new ones are great and the new user is more than happy with over 10hrs on high, and well over 16 on low.
ImA4Wheelr
(ImA4Wheelr)
October 21, 2013, 4:00am
16
Thank you HKJ for another very informative cell review.