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Universal
lithium ion battery pack |
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| This powerful little battery pack is very
flexible, it can act as a 5 volt battery or a 19 volt battery with 6 steps in between. Outputs
at 5V, 6V, 7.5V, 9V, 12V, 14V, 16V and 19V. It can also be charged with voltages as low as 5
volts and as high as 24VDC. |
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This battery pack consists of a 44
watt hour lithium ion battery assembly and three 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. The third DC
converter supplies a steady 5 volts to a USB port for charging cell phones, Ipods, and other
USB charged equipment. All this is built into the sleek black battery case.
For example,
when used with your cell-phone car charger attached the PST-MP3500 can run a typical cell phone
for 15 times longer than the battery in the phone, or charge the phone 10-15 times. You can
double the battery time for a laptop computer, or use a digital camera up to 20 times as long
as when using disposable AA alkalines.
Special Features :
- 44 Watt-Hour battery pack with flexible output voltage (upgradeable to 88
watts).
- Automatic overcharge protection
- Gas gauge feature tells how much power is remaining
- Highly regulated voltage source, doesn't sag like batteries do.
- Auxiliary 5 volt USB output for charging cell phones.
- Locking feature prevents the voltage from changing by mistake.
- The PST-MP3500 portable rechargeable battery is designed to charge while
running your equipment, just plug the charger into the PST-MP3500 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 perfect for energy harvesting type charging from (for example) unregulated solar
panels as long as the input voltage doesn't go above 24 volts.
- Use it for a laptop today, a digital camera tomorrow, or a portable battery
for a DVD while simultaneously charging your cell phone--it is very flexible.
- For safety reasons this unit will reset the voltage to 5 volts when the
barrel connector is changed, the cord is removed, or the unit shuts itself off when the battery
is fully discharged. Just press the button until the desired voltage appears. If you want a
unit without that feature, take a look at our
industrial universal battery pack version
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| Price List |
Quantity:1-10 |
11-50 |
PST-MP3500 Price includes rechargeable battery, case, bag, AC charger,
cable kit and barrel plug adapters |
$172.00
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$160.00
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PST-MP3460 Add-on battery which doubles the capacity of the MP3500 |
$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 Battery Pack |
| AC Charger |
The included power supply for charging has an input of 90-240 VAC, 50/60 Hz,
19 volts output |
| 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. |
| Peak Output Power |
3.5 amps or 50 Watts |
| Output Voltage Steps |
5VDC, 6VDC, 7.5VDC, 9VDC, 12VDC, 14VDC, 16VDC, 19VDC |
| Output current |
5 Volt 1.5 amp continuous, 4.8 amp peak for 1-2 minutes at a time |
| 6 Volts 1.5 amps continuous, 4.8 amps peak for 1-2 minutes at a time |
| 7.5 volts 1.5 amps continuous, up to 4.8 amps peak for 1-2 minutes at a
time |
| 9 volts 1.5 amps continuous, up to 4.5 amps peak for 1-2 minutes at a
time |
| 12 volts 2 amps continuous, up to 4 amps peak for 1-2 minutes at a time |
| 14 volts 2 amps, up to 3.5 amps peak for 1-2 minutes at a time |
| 16 volts 3 amps continuous |
| 19 Volt 3 amps continuous |
| USB output |
5 volts 1 amp |
| Equivalent Capacity |
45 watt hours |
Detailed Capacity (double this capacity for the
combination of MP3500 plus MP3460) |
8.6 AH at 5 volts |
| 7.25 AH at 6 volts |
| 5.7 AH at 7.5 volts |
| 4.7 AH at 9 volts |
| 3.6AH at 12 volts |
| 3.25 AH at 14 volts |
| 2.75 AH at 16 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 |
| Kit list |
Battery pack, charger, output cord, case, barrel adapters, barrel adapter
storage |
| Charger |
Includes 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 without the output cord 370 grams for the add-on pack |
| Defect |
The defect that was reported here in the past is now fixed. There is no
voltage drop-out when the charging voltage is removed. |
Connector kit
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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.
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16 connector set available extra, click here.
If the connector assortment that is included doesn'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 this pack delivers 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 has about
3.2 grams of equivalent lithium, and the combination of the PST-MP3500 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 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 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 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.
Recently I arrived in the parking lot for my meeting just as my cell phone "dead battery" beep
started up. I was waiting for an important call and didn't want to leave my phone in the car
for charging. So I just plugged my phone's USB charger cable into the MP3500's USB port and put
the combination in my briefcase. When the phone rang in my briefcase it was charged enough to
handle several calls and I got to show off my fun battery pack at the same time.
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 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 |
155 minutes |
2 hours 35 minutes |
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| Internal Battery + MP3500 + 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 Technologies: 1163 S.
1680 West. Orem Utah 84058 Phone: 801-764-9060
Fax: 801-764-9061
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© Copyright 2000, 2002, 2004, 2005, 2006, 2007, 2009,
2010 Lund Instrument Engineering, Inc. All rights reserved |
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MP3500 series user's manual
MP3500I series user's manual
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