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%
could be shrink wrapped better around directional tab.
Test 1 in 540 Test Bot:Fitment was very snug in the battery box, much tighter then expected but did seat and work fine.
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)
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
