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Universal lithium ion battery pack--Industrial version |
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The difference between this unit and the consumer version is that this unit is DIP-switch selectable. This locks in the voltage. (The consumer version resets to 5V every time the
unit is turned on or the cord is plugged in, but this one does not). This industrial version also has more voltages selectable.
The DIP switch replaces the USB connector, so that capability is eliminated for the industrial model.
This powerful
little battery pack is very flexible, it can act as a 5 volt battery or a 19 volt battery with 14 steps in between. Outputs at
5V , 5.5V , 6V , 6.5V , 7.5V , 8.4V , 9V , 10V , 11V , 12V , 13V , 14V , 15V , 16V , 18V , or19V. It can also be charged with
voltages as low as 5 volts and as high as 24VDC. |
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This portable
rechargeable battery pack consists of a 44 watt hour lithium ion battery assembly and two DC/DC converters. The first DC
converter allows the pack to be charged with a wide range of voltage inputs. The second allows the pack to deliver a user
settable voltage to run equipment requiring 5volts to 19+volts. All this is built into the sleek black battery case.
For
example, this industrial model is used by OEMs to be their battery back-up to add UPS features to their equipment as well as
portability. You can run the system from the included charger through the battery pack. When the AC power fails the battery
takes over with no interruption in service. This is called a double conversion UPS with DC output.
Special Features :
- 44 Watt-Hour battery pack with flexible output voltage (upgradeable to 88 watts).
- Automatic overcharge protection
- Gas gauge feature tells how much battery power is remaining
- Highly regulated voltage source, doesn't sag like batteries do.
- The PST-MP3500-I is designed to charge while running your equipment, just plug the charger into the
PST-MP3500-I and the battery pack into the laptop computer.
- The charger section of the battery pack has a DC/DC converter with a wide input range. This means that the pack
can be charged from a wide variety of sources. The input voltage for charging can be as low as 5 volts and as high as 24 volts.
This makes the PST-MP3500-I perfect for energy harvesting type charging from (for example) unregulated solar panels as long as
the input voltage doesn't go above 24 volts.
- This can be used as a DC battery backup. If you run your instrument from the pack while the pack is being
charged from the mains the battery will take over when the mains fail.
| Price List |
Quantity:1-10 |
11-50 |
PST-MP3500-I Price includes Battery, case, bag, AC charger, cable kit and barrel plug adapters |
$172.00
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$160.00 |
PST-MP3460 Add-on battery which doubles the capacity of the MP3500-I |
$114.00
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$106.00
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| Optional |
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| PST-MP3500-cable kit. Optional extra output cable and connector kit. |
$20.00
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Part Number PST-Cig21 Optional car charger
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Price $8.00 each
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Specifications
| Model Number |
PST-MP3500-I Battery Pack |
| AC Charger |
The included power supply for charging has an input of 90-240 VAC, 50/60 Hz, 19 volts output.
It will charge the battery in about 1.5 hours |
| Charging voltage |
The charging voltage can be between 5 volts and 24 volts. The current drawn from the charging
source is limited to about 1 amp, so the pack will charge faster at the higher input voltages. If you are also running a
load then the input current raises to the power required by the charging plus the power required by the load. |
| Continuous Output Power |
4 amps or 60 Watts |
| Output Voltage Steps |
5V , 5.5V , 6V , 6.5V , 7.5V , 8.4V , 9V , 10V , 11V , 12V , 13V , 14V , 15V , 16V , 18V ,
19V |
Output current
Note: when drawing more than 40 watts
continuously the battery pack gives of significant heat. Provisions should be made for air flow or heat sinking if the battery
is in a closed container. |
5 Volt 4 amp continuous, 20 watts |
| 5.5 Volt, 4 amps continuous, 22 watts |
| 6 Volts 4 amps continuous, 24 watts |
| 6.5 Volts, 4 amps continuous, 26 watts |
| 7.5 volts 4 amps continuous, 30 watts |
| 9 volts 4 amps continuous, 36 watts |
| 10 Volts, 4 amps continous, 40 watts |
| 11 Volts, 4 amps continuous, 44 watts |
| 12 volts 4 amps continuous, 48 watts |
| 15 volts, 4 amps continuous, 60 watts |
16 volts, 3.75 amps continuous, 60 watts 4 amps for 5 minutes, 64 watts |
| 18 volts, 3.3 amps continuous, 60 watts |
| 19 Volts, 3.16 amps continuous, 60 watts |
| Equivalent Capacity |
45 watt hours |
Detailed Capacity (double this capacity for the combination of MP3500-I
plus MP3460) |
8.6 AH at 5 volts |
| 8 AH at 5.5 volts |
| 7.25 AH at 6 volts |
| 6.75 AH at 6.5 volts |
| 5.7 AH at 7.5 volts |
| 5.2 AH at 8.4 volts |
| 4.7 AH at 9 volts |
| 4.4 AH at 10 volts |
| 4AH at 11 volts |
| 3.6AH at 12 volts |
| 3.4 AH at 13 volts |
| 3.25 AH at 14 volts |
| 2.9 AH at 15 volts |
| 2.75 AH at 16 volts |
| 2.4 AH at 18 volts |
| 2.4 AH at 19 Volts |
| Charging port |
Charge input is a 5.5 x 2.1mm barrel jack |
| Dimensions |
3.28 x 6.8 x 0.92 inches (85 x 173 x 23.4 mm) |
| Charging time |
3-4 hours using the 19V output AC charger included |
| Alarm |
There is an audio alarm that sounds when the battery is close to being empty. It sounds when
the battery is 3% to 5% full and will sound until the battery shuts off. |
| Kit list |
Battery pack, charger, output cord, case, barrel adapters, barrel adapter storage |
| Charger |
Included is a universal AC input (100-240 VAC 50/60Hz) 19 volt 3.16 amp power supply that is
used for charging. It has a 5.5 x 2.1 mm barrel connector. Charger dimensions are 67x31x106 mm. The power supply has CE, UL,
CCC, TUV. |
| Weight |
440g, 1 Pound including cord 330g without the output cord |
Connector kit |
2.35 Outside Diameter x 0.75mm Inside Diameter digital camera style 4.0 OD x 1.7mm
ID 4.75 OD x 1.75mm ID 5.5 OD x 2.1 mm ID 5.5 OD x 2.5 mm ID 6.3 OD x 3 mm ID
(6.0 to 6.5)OD x 4.25 ID with
1.5mm center pin |
| Output socket information for engineers |
The output socket is a special 3-pin mini-din made by Kycon. If you need some mating connectors
because you want to make your own cables the data sheet is here. They are readily available from Mouser. |
16 connector set available extra, click here. If the connectors that are included don't have the one you need you can order this kit which has the 16 most popular
connectors in it.
It also works with any of the connector adapters with 4 mm pin spacing such as this one that might be
available to you locally.
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| A picture of how the auxiliary battery attaches to double the capacity. |
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 Accessory Table Typical run time calculations
| Power Drawn from Battery(Watts = Amps*Volts) |
Continuous Running Time |
Time with MP3460 |
| 1 watt |
45 Hours |
90 hours |
| 5 watts |
9 Hours |
18 hours |
| 10 watts |
4.5 Hours |
9 hours |
| 15 watts |
3 Hours |
6 hours |
| 20 watts |
2.25 Hours |
4.5 hours |
| 30 watts |
1.5 Hours |
3 hours |
| 45 watts |
1 Hour |
2 hours |
Voltage versus time discharge curves. You can see that, unlike plain batteries, the output voltage is
precisely regulated until the battery runs out of stored energy.
You can see that unlike plain batteries this pack delivers exact regulated voltage until the pack runs out of juice. This
is very helpful for instruments, cameras, thermal cameras, lights, and other applications that work best with regulated power.
For comparison, most laptop batteries use 14.4 volts and 2.2 AH, so this can run a laptop longer than the built-in
battery.
Many laptops can be run at lower voltage than the manufacturer's power pack would indicate, they just can't
charge the battery at lower voltages. In this case it is a good idea to run the battery pack at 12 to 14 volts so no power is
wasted charging the laptop's internal battery. However, you can't always use this trick, my ACER won't run at all unless I give
it the full rated voltage.
Click here to download a quick-start PDF graphic manual that
shows how to use these external battery
packs.
Questions and Answers
Q: Is it legal to take these spare
batteries on airplanes?
A: The PST-MP3500-I has about 3.2 grams of equivalent lithium, and the combination of the
PST-MP3500-I and PST-MP3460 contain about 6.4 grams of equivalent lithium, so they are OK to take in carry-on luggage. See the
governement web page http://safetravel.dot.gov/whats_new_batteries.html for more details.
Q: I have a 60 watt laptop, will this 50 watt battery pack work with it?
A:
Yes, the 60 watts is the maximum that the computer can use, including charging the internal battery. It is recommended that the
PST-MP3500-I be used when the laptop's internal battery is full or removed. Some computers will also run fine on lower voltage
(12V, 14, or 16V) which will prevent the internal battery from being charged, if you don't waste energy charging the internal
battery you will get you even more run time from the external battery pack. In addition the PST-MP3500-I can supply up to 60
watts when the laptop needs peak power.
Q: The AC charger that is included, is it a peak charger? So that it
switches off the charging process when the battery is fully charged?
A: The charging circuit is actually built
into the battery case. So the charger that comes with it is just a power supply. In fact any voltage between 5VDC and 24VDC can
be used to charge it. The internal charger is a smart charger, it will not overcharge the battery. In fact when I am in China I
leave the battery connected to the computer and run the "charger" into the battery. That way I only have to bring one power
supply with me.
Field test:
December 2006. I have been using one of these packs
since July of 2006, first on a trip to China and then on several smaller trips and also in the lab to create the curves shown
above. It was very nice to be able to run my 60 watt Acer laptop as long as I could stand to work on the bus and the plane
rides. You can also see the impressive voltage regulation and runtime from the curves.
I have also been impressed that
it will recharge from voltage sources as low as 5 volts, I have recharged mine at 5 volts, 9 volts, 12-14 volts (car cigarette
lighter), at 14, at 16, 19, and even 24 volts. I am sure that it will charge at any voltage above 5V and less than 24V. I have
a little solar charger that I would like to try, but my office window faces north toward the mountains and I don't get much
direct sun.
August 2007
I wrote a WordPerfect macro to time how long it took for the computer to shut down due
to running low on battery power. Then I ran my Acer a couple of ways to measure how much more time the MP3500-I gives me.
| Configuration |
Minutes |
Hours and minutes |
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| Internal Battery alone |
84 minutes |
1 hour 24 minutes |
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| Intermal Battery + MP3500-I |
155 minutes |
2 hours 35 minutes |
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| Internal Battery + MP3500-I + MP3460 |
226 minutes |
3 hours 46 minutes |
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Testimonials:
Harry M: I would like to say that this is the BEST UPS appliance I've come across with
and I'm very pleased with the product itself. I'm planning to buy more in the near future for other experiments. |
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PowerStream Technology: 140 South Mountainway Drive, Orem
Utah 84058 Phone: 801-764-9060 Fax: 801-764-9061 |
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© Copyright 2000, 2002, 2004, 2005, 2006, 2007, 2009 Lund Instrument
Engineering, Inc. All rights reserved |
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