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Universal
lithium ion battery pack |
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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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For
DC DC converters from PowerStream click here:
Custom design and manufacture of
state-of-the-art battery chargers, UPS, and power supplies for OEMs in a
hurry!
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 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, while simultaneously charging your cell phone--it is very
flexible.
| Price List |
Quantity:1-10 |
11-50 |
PST-MP3500
Price includes 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
OUT OF
STOCKAdd-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
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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 including
cord
330g without the output cord |
| 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 |
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 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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PowerStream Technology:
140 South Mountainway Drive, Orem Utah 84058
Phone: 801-764-9060, 9062, 9063, or 9064
Fax: 801-764-9061 |
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PowerStream Technology
140 South Mountainway Dr.
Orem, UT 84058
Phone: 801-764-9060, 9062, 9063, or 9064
Fax: 801-764-9061
Map & Directions |
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© Copyright 2000,
2002, 2004, 2005, 2006, 2007 Lund Instrument Engineering, Inc. All rights
reserved |
12 volt Battery Pack
7.5 volt external battery
pack
9 volt external battery pack
5 volt Digital camera battery
pack
16 volt battery packs
5 volt External battery pack with USB output
for cell phones, games, and battery chargers
14 V external battery
pack
19 volt battery
6 volt battery
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