1 Testing the Leading Brand 2A Charger vs. Renaissance Charger 6/27/07-7/2/07
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Testing theLeading Brand 2A Charger vs. Renaissance Charger
6/27/07-7/2/07
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Abstract: It is well known in the art that batteries, especially starterbatteries, are extremely susceptible to damage and/or a shortenedlifespan from deep discharges. It would be therefore a greatadvantage to provide the industry a charger that would be effective incharging a battery that has been subjected to this condition.
Purpose: To prove which charger is more effective in charging a batterythat has been deeply discharged.
Test Procedure:
1) Obtain (2) brand new batteries.
2) Discharge them into 2 identical loads, at the same time, whilemeasuring voltage to prove they are in virtually the samecondition.
3) Charge up one battery with the Leading Brand 2A pulse charger (Avery good, “s mart” battery charger). Charge the other batterywith the Renaissance charger.
4) Discharge the batteries respectively through 2 identical load bankswhile measuring the voltage of each.
5) Repeat steps 3 and 4 above 2 more times.
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Step 1) Obtain 2 approximately identical batteries.
Obtained 2 identical U17-R Everstart 275 CCA lawn tractor batteries fromWal-Mart 6/27/07 at 8:30AM. Labeled one as Battery A and the other asBattery B.
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Step 2) Discharge the batteries to prove they behave similarly.
Began test at 9:30A. As can be seen from the pictures above, Battery Bappears to be in slightly better condition.
Load Time (Min.) Battery A Battery B1 11.67 11.742 11.65 11.723 11.62 11.684 11.58 11.655 11.55 11.626 11.52 11.607 11.49 11.568 11.46 11.539 11.42 11.49
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10 11.38 11.4511 11.33 11.4112 11.28 11.3613 11.22 11.3014 11.15 11.2415 11.06 11.1616 10.94 11.0617 10.79 10.9218 10.40 10.6919 3.73 9.3620 2.13 6.2521 2.34 4.2722 2.60 1.1223 2.61 .6524 1.49 .8425 1.37 .8226 1.07 .8327 .86 1.02
Load Bank A ((3) paralleled 120W headlights) shown on top.Load Bank B on the bottom.
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As can be seen above, the Load A is virtually the identical to Load B, bothbanks of lights drawing the same (+/-0.5%) current.
Graphed below, Battery B is proven to be in slightly better condition.
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Step 3) Charging the Batteries
For the purpose of this test, Battery A, in slightly worse condition thanBattery B, was chosen to be charged with the Renaissance Charger whileBattery B was charged by the Leading Brand Charger set at the 2A setting.
Step 4) Cycling the Batteries
1st Discharge Cycle 6/28/07 6:50AM
Load Time (Min.) Battery A Battery B0 13.38 13.291 11.86 11.882 11.87 11.893 11.86 11.884 11.85 11.875 11.84 11.856 11.82 11.847 11.80 11.818 11.77 11.799 11.75 11.76
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10 11.72 11.7311 11.69 11.7012 11.66 11.6713 11.63 11.6414 11.59 11.6015 11.55 11.5616 11.51 11.5117 11.47 11.4718 11.42 11.4219 11.37 11.3720 11.32 11.3121 11.25 11.2522 11.18 11.1923 11.09 11.1124 10.96 11.0325 10.77 10.9326 10.43 10.8127 7.35 10.6628 4.34 10.3829 4.33 9.9130 4.10 7.0531 2.52 5.3432 2.54 3.4933 2.55 1.7734 2.51 1.1035 1.75 .74
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2nd Discharge Cycle 06/29/07 7:10AM
Load Time (Min.) Battery A Battery B0 13.53 13.281 11.90 11.892 11.91 11.903 11.90 11.904 11.89 11.885 11.87 11.876 11.85 11.857 11.83 11.828 11.81 11.809 11.78 11.77
10 11.76 11.7411 11.73 11.7112 11.70 11.6813 11.66 11.6514 11.63 11.6115 11.59 11.5716 11.55 11.5317 11.51 11.4818 11.46 11.4319 11.41 11.3720 11.36 11.3121 11.29 11.2422 11.22 11.17
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23 11.15 11.0924 11.04 10.9825 10.90 10.8626 10.70 10.7127 10.32 10.5328 7.43 10.2629 5.57 9.8230 4.26 8.6031 3.99 5.5332 2.83 4.2733 2.45 2.5934 2.43 1.5635 2.34 .64
3rd Discharge Cycle 6/30/07 8:01AM
Load Time (Min.) Battery A Battery B0 13.64 13.291 11.90 11.872 11.90 11.903 11.91 11.894 11.89 11.875 11.87 11.866 11.85 11.837 11.83 11.818 11.81 11.789 11.78 11.76
10 11.75 11.7211 11.73 11.6912 11.70 11.6613 11.66 11.6214 11.63 11.5815 11.59 11.5416 11.55 11.4917 11.50 11.4418 11.46 11.3819 11.41 11.3220 11.35 11.2521 11.28 11.1622 11.21 11.0723 11.12 10.9624 11.00 10.8325 10.84 10.6626 10.59 10.4427 10.10 10.1528 7.05 9.6429 5.59 8.8430 4.16 6.9131 3.99 4.8832 2.87 3.6933 2.29 2.3834 1.88 1.2935 1.28 .69
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4th Discharge Cycle 7/1/07 8:46AM
Load Time (Min.) Battery A Battery B0 13.54 13.261 11.93 11.872 11.94 11.883 11.93 11.874 11.91 11.855 11.89 11.836 11.87 11.807 11.85 11.788 11.82 11.759 11.80 11.72
10 11.77 11.6811 11.74 11.6512 11.70 11.6113 11.66 11.5614 11.64 11.5215 11.60 11.4716 11.55 11.4117 11.51 11.3518 11.47 11.2819 11.41 11.1820 11.35 11.1121 11.29 11.0022 11.21 10.8723 11.11 10.7124 10.98 10.5125 10.81 10.2226 10.56 9.7627 9.92 8.9628 7.27 7.6729 5.50 6.1630 4.09 4.8731 4.00 3.6232 3.22 2.5733 1.76 1.6434 1.10 1.1335 1.07 .65
5th Discharge Cycle 7/2/07 7:28AM
Load Time (Min.) Battery A Battery B0 13.56 13.261 11.89 11.872 11.92 11.903 11.91 11.894 11.90 11.875 11.88 11.846 11.85 11.827 11.83 11.79
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8 11.81 11.769 11.78 11.73
10 11.76 11.6911 11.73 11.6612 11.70 11.6213 11.67 11.5714 11.63 11.5215 11.60 11.4616 11.56 11.4017 11.52 11.3318 11.48 11.2519 11.43 11.1520 11.38 11.0421 11.32 10.9122 11.26 10.7623 11.18 10.5524 11.09 10.2825 10.99 9.8726 10.84 9.1927 10.64 8.1528 10.29 6.8829 8.94 5.7030 5.92 4.6131 4.03 3.7332 3.96 2.8233 3.21 2.0934 2.19 1.5035 1.83 1.04
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