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Savings from Rechargeable Battery
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Q1. How long can NiMH Batteries last for my different
applications per charge?
The lasting
time for 4 different applications are given below:
| AA Battery |
NiMH*
Rechargeable |
NiCd Rechargebale |
Alkaline Batteries |
| Digital Camera |
90 -
150 Photos |
60 - 80 photos |
30 - 50 photos** |
| CD Player |
18
hours |
7 hours |
6 hours |
| Game Boy |
26
hours |
12 hours |
7 hours |
| PDA |
18
hours |
8 hours |
7 hours |
*
Based on 1800 mAh NiMH AA batteries ** Based on three national brands
(Back to top)
Q2. Using NiMH rechargeable vs. Alkaline primary (throwaway)
battery, how much can I save?
NiMH rechargeable batteries
last longer than Alkaline batteries which are currently the best
among the throwaway batteries. NiMH rechargeable batteries thus maximize the
performance of High Drain Devices with Nickel Metal Hydride (NiMH)
Batteries. This
means:
• Take more pictures
with Digital Cameras
• Listen to more hours
of music on Portable CD Players
• Play more hours on
Handheld Games
The following table is a
comparison for using batteries for digital camera. The comparison shows that
using NiMH batteries is more than 100 times more cost effective than
using Alkaline prime batteries.
| AA Battery |
Premium
Alkaline |
NiMH
Battery
@
Retail |
NiMH
Battery
@
all-battery.com |
| Price 4 AA batteries |
$2.99 |
$12.99 |
$3.99 |
| # of photos per
charge |
45* |
90 |
90 |
| Battery
reuse Life cycles |
1 |
500 |
500 |
| Cost of Charger |
0 |
19.99 |
14.99 |
| Total Investment |
$2.99 |
$32.98 |
$18.98 |
| Total # of photos
can taken per battery |
45 |
30,000 |
30,000 |
| Battery
cost per photo |
$0.0664 |
0.0011 |
$0.0006 |
* Based AA Alkaline
batteries and AA NiMH 2000 mAh rechargeable batteries
** Based on the average
of three national brands
*** Based on industry
(ANSI) digital camera test. (Based on average).
The other way to
estimate the saving is shown in the following plot. Take the same digital
camera example, we can compare NiMH rechargeable and alkaline throwaway.
Since alkaline batteries need to be replaced every 45 photos while the NiMH
batteries can last up to 30,000 photos, the accumulated cost comparison is
shown in the following plot. You can draw two conclusions from this plot:
(1) saving from using NiMH rechargeable can be realized early on, typical
after 20 -40 photos; (2) the total saving over the life time of NiMH
rechargeable batteries can be up to $2,000.
So when you change your
battery habit from Alkaline to NiMH rechargeable, your saving starts to
accumulate as shown in the following chart. In addition, you are saving
the environment. (Back to top) |
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