ELK-BLT Battery LifeTester: Tests 12V Rechargeable Batteries from ELK Products
| Battery
LifeTester™ |
|
| ELK-BLT
v.2 Mhos Meter |
| The NEW and improved
ELK-BLT v.2 Battery LifeTester is a compact, easy to use Mhos Meter
for testing 12 Volt rechargeable batteries. Unlike ordinary testers
which only measure static criteria, the LifeTester measures internal
conductivity, which is the best indicator of a battery’s health
and life expectancy. The conductivity value, expressed in Mhos (the
inverse of Ohms or resistance), is easily compared to benchmark
readings from the included Mhos Chart. The chart then categorizes
the battery condition as “Best, Good, Weak, or Bad”. Every
battery type has a characteristic Mhos value when it is brand new
and fully charged. The LifeTester is powered by the battery under
test and automatically warns when the battery voltage is too low for
testing. |
|
Self-adhesive
test data labels
are included which can be placed on each new battery to record
battery measurements for future tests.
Additional test
data labels are available.
Re-Order
ELK-BLT LABELS (100 pcs). |
 |
• Compact, Low cost, and easy to use.
• Does not discharge or damage the battery.
• Analyzes 12 Volt Rechargeable Batteries.
• Warns if battery voltage is too low.
• Replaceable test leads.
• Includes Padded Carrying Case.
• Includes Self-Adhesive Test Data Labels.
• Lifetime Limited Warranty
• Numeric LED display shows battery voltage, and Mhos reading. |
•
Operating Voltage:
• Current Draw:
• Battery Leads:
• Enclosure Size: |
10V - 14
Volts D.C.
1.1 Amps Max., 0.0016Ah for full test
~12 Inches
4.4" W x 3" H x 1.15" D (111.8mm x
76.3mm x 29.2mm) w/o carrying case |
How Temperature affects a Battery
Generally speaking, temperatures below 72F degrees tend to slow
down a battery’s internal activity, causing a significant
decrease in the Mhos (conductivity) reading as the temperature
falls. Cool temperatures (not below freezing) will tend to prolong
a battery’s life. Temperatures above 72F cause a battery’s
internal activity to accelerate, but with only a slight increase
in the Mhos reading. Warm temperatures will tend to dry out and
degrade a battery much faster than normal.
100 F degrees = 105 % of normal Mhos (conductivity)
72 F degrees = 0 % no
adjustment
62 F
degrees = 92 % of normal Mhos (conductivity)
52 F
degrees = 87 % of normal Mhos (conductivity)
42 F degrees = 82 % of normal Mhos (conductivity)
32 F degrees = 76 %
of normal Mhos (conductivity)
|
| Battery
Mhos Chart |
| @ 72 Degrees F |
Mhos |
Mhos |
Mhos |
Mhos |
| Ah Size |
BAD |
WEAK |
GOOD |
BEST |
| .8 Ah |
0 - 19 |
20 - 21 |
22 - 24 |
25+ |
| 1.3 Ah |
0 - 24 |
25 - 28 |
29 - 31 |
32+ |
| 2.3 Ah |
0 - 40 |
41 - 45 |
46 - 51 |
52+ |
| 2.6 Ah |
0 - 44 |
45
- 50 |
51 - 57 |
58+ |
| 3.0 Ah |
0 - 48 |
49 - 55 |
56 - 62 |
63+ |
| 3.3 Ah |
0 - 49 |
50 - 57 |
58 - 64 |
65+ |
| 4.0 Ah |
0 - 64 |
65 - 73 |
74 - 83 |
84+ |
| 4.5 Ah |
0 - 73 |
74 - 83 |
84 - 94 |
95+ |
| 5.0 Ah |
0 - 76 |
77 - 87 |
88 - 96 |
99+ |
| 7.0 Ah |
0 - 139 |
140 - 159 |
160 - 179 |
180+ |
| 7.5 Ah |
0 - 153 |
154 - 175 |
176 - 197 |
198+ |
| 8.0 Ah |
0 - 157 |
158 - 179 |
180 - 202 |
203+ |
| 10.0 Ah |
0 - 185 |
186 - 211 |
212 - 238 |
239+ |
| 12.0 Ah |
0 - 192 |
193 - 219 |
220 - 247 |
248+ |
| 17.0 Ah |
0 - 265 |
266 - 303 |
304 - 341 |
342+ |
| 18.0 Ah |
0 - 279 |
280 - 319 |
320 - 359 |
360+ |
| 24.0 Ah |
0 - 321 |
322 - 367 |
368 - 413 |
414+ |
| 25.0 Ah |
0 - 328 |
329 - 375 |
376 - 422 |
423+ |
| 26.0 Ah |
0 - 335 |
336 - 383 |
384 - 431 |
432+ |
|
Adding to the Battery Mhos Chart
If the battery you are trying to test is not included in the
Battery Mhos Chart it may be necessary to research and generate
the data on your own. The following procedure will help with this
task. Start with 2 or 3 fresh new batteries out of the box. The
battery voltage should be around 12.6 Volts or higher. Place the
batteries in service (on charge) for 24 hours. Remove them from
charge and measure the Mhos reading of each one. Average the
readings together. This will be the baseline number from which the
Best, Good, Weak, and Bad columns are calculated. The “Best”
column will be 90% of the baseline number. The first and second
numbers in the “Good” column are 80% and 89% of the baseline.
The first and second numbers in the “Weak” column are 70% and
79% of the baseline. The “Bad” column is 0% and 69% of the
baseline. |
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