Review: Tenergy 4500mAH R3+ Battery Pack

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Review: Tenergy 4500mAH R3+ Battery Pack

Postby a1robotrepair » January 3rd, 2017, 9:02 pm

Amazon Link https://www.amazon.com/gp/product/B016X9K3HG/ref=as_li_tl?ie=UTF8&tag=robotreviews-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B003MXMWQ2&linkId=24ad7c1b4f8b5b074968c644e75d8d34&th=1

Initial:
27.1 oz heaviest NIMH battery
14.4K on T IR temp 17.48C within .15C
15.8V shipped
[0 min. 17.14V 08:33] [720 min. 16.81V 20:33 (dV=0.33)] [1440 min. 16.7V 08:33 (dV0=0.44) (dV12=0.11)]
[2160 min. 16.63V 20:40 (dV03=0.51) (dV24=0.07V)] [2880 min. 16.59V 08:33 (dV04=0.550) (dV36=0.04)]
[6.5V H72] [0.045V day 4-5]
24 hour self discharge = 0.44/6.34 = 6.9% :thumbup:
could be shrink wrapped better around directional tab.
Fitment was very snug in the battery box, much tighter then expected but did seat and work fine.

Test 1 in 540 Test Bot:
20minutes @ 22C ambient.
540 081023 2012-03-22-1549
Min 1 19.4C, 15.6 to 16.1V @ 1.26A, 400mO pack, 33/cell, state 5
Min 111 to 17.5V dTdt, 17.0 @ delta, 40.9C, 400 & 33, state 6
Min 231 16.5V, 50mA, 36C, state 7
large mass packs cool slower
Bbox@1200:0 saved 1200:12
Min 1200, 16.93V, 32.8C
Start 10:53, expected 155 to 180m 1355to1380m
12:03-Yellow, 12:20-Orange, 12:40-Red, 13:40-drained 1367m
167 minutes total 4770 to 4175, 4470 average, (based off face plate calc, not actual usable by Roomba) :handgestures-thumbup:
Min 1370, 14.39V, mAH -1, 48.3C, state 2
Min 1457, 14.06V, mAH 11, 39.9C, state 2
do-charging-on @ minutes 1457
Min 1458, 14.72V, mA 1285, mAH 15, 39.8C, state 5
Min 1642, 17.28V, mA 1260, mAH 3355, 47.9C, state 5
charging-done: dTdt/dTdto @ minutes 1642
Min 1642, 16.98V, mA 0, mAH 3774, 47.9C, state 6
17.28 - 16.87 = .41V/1.26 = 325mO/12 = 27mO
do-charging-trickle @ minutes 1762
Min 1762, 16.5V, mA 50, 37.9C, state 7

Test 2 in 540 Test Bot:
bat: min 4642 sec 32 mV 17061 mA 39 tenths-deg-C 335 mAH 3774 state 7
Start 8:22, Yellow @ 10:20, Orange @ 10:40, Red @ 11:00, Drained @ 11:15 (173 minutes)
173*100/Lim 3.5, 4 = 4943 hi, 4325 low, 4634 average
(These tests reveal the Clean LEDs Color changes, BBVARs, namely, current calculation)
bat: min 5505 sec 46 mV 17005 mA 55 tenths-deg-C 310 mAH 4075 state 7
One more complete discharge and charge will put my mAH reading in the ball park. BBVARs

Test 3 in 540 w/ 5 day trickle charge
bat: min 11153 sec 0 mV 17144 mA 47 tenths-deg-C 330 mAH 4075 state 7
Start 8:55, Yellow @ 11:10, Orange @ 11:25, Red @ 11:40, Drained @ 11:58 (183 minutes)
5230 high, 4575 low, amb. Temp 20C, Humidity 37%, 4900 average, 100 to 200>
do-charging-on @ minutes 11426
bat: min 11426 sec 43 mV 14333 mA 1109 tenths-deg-C 399 mAH 11 state 5
bat: min 11612 sec 36 mV 17339 mA 1266 tenths-deg-C 458 mAH 3389 state 5
charging-done: relative temperature slope @ minutes 11612
do-charging-waiting-trickle @ minutes 11612
bat: min 11612 sec 37 mV 17228 mA 23 tenths-deg-C 458 mAH 4161 state 6
bat: min 11617 sec 28 mV 16866 mA 0 tenths-deg-C 459 mAH 4161 state 6
do-charging-trickle @ minutes 11732
saving bbox vars
bat: min 11732 sec 0 mV 16532 mA 63 tenths-deg-C 359 mAH 4161 state 7

Battery well made.
Shrink Tube needs better adheasion @ directional tab.
Thermistor very close to actual, mounted well enough, checked with IR therm. And Ohm meter using H/Sh calculator.
Low internal pack resistance, calculated, better readings from load center coming.
Expected run time reached on 1st run dT/dt charge + 16+ hours trickle, 167 minutes.
On average, test bot minutes = face plate rating/100 * Lim 3.5, 4 = 167.5 +- 12.5
Charging from 0mAH to 3355 R3+ dTdt/dTdto.
R3 calculated 3774mAH usable, probably low by 200mAH.
It is quite refreshing to find a battery that is actually what it is rated.
Further testing to be performed:
1. 48 hour trickle, run and charge X2. Note 4642
2. Load center tests @ 900mA, 1800mA, 4500mA from 16.8V to 10.8V.
3. Charging @ 900 mA from 10.8V(loaded) to 16.8V X3.
Recommended? Initially, Yes, but the jury is still out testing.
They shoved more crap into a bag I thought was already full, 3.3Ah.


OEM APS 3000 init. 116 min.
do-charging-wait-initial @ minutes 1152
bat: min 1152 sec 29 mV 13916 mA -16 tenths-deg-C 423 mAH -1 state 2
bat: min 1191 sec 56 mV 14416 mA 0 tenths-deg-C 399 mAH -1 state 2
do-charging-on @ minutes 1191
bat: min 1191 sec 57 mV 14556 mA 1234 tenths-deg-C 399 mAH -1 state 5
bat: min 1192 sec 10 mV 14862 mA 1266 tenths-deg-C 398 mAH 4 state 5
Last edited by a1robotrepair on January 16th, 2017, 10:12 am, edited 25 times in total.
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Re: Review: Tenergy 4500mAH R3+ Battery Pack

Postby Tenergy » January 9th, 2017, 11:05 pm

Wow! Thank you so much for the in-depth information about the performance of our battery! We look forward to more updates from the further testing!

If anyone is interested in testing this Roomba repalcement battery for us please don't hesitate to send an email or PM.

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Location: California, USA

Re: Review: Tenergy 4500mAH R3+ Battery Pack

Postby robotreviews » January 10th, 2017, 6:39 pm

World's greatest battery review.
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