Black and Decker 500 Watt 12V Portable Power Pack
Windstream offers the 12V Black and Decker Portable Power Pack to use with our Human Power Generator. Perfect for running small appliances like laptops, lights and small devices that draw under about 50 watts.
- 18 Ah, 12V battery
- 120V DC/AC inverter built in
- 20 lbs, easy to carry
- Built in jumper cables
- LED Light – built in
Windstream manufactures a custom 10 ft, diode protected connecting cable. It connects effortlessly with a twist lock connector on the generator side and a cigarette lighter input plug on the power pack side.
The portable power pack is usually recharged by plugging into a wall socket overnight or using the 12V cigarette lighter connector in your car or truck. In the case of Human Power, we are charging the battery by pedaling.
In order to do this in a practical and workable way, it’s important to keep the battery more or less, topped up. If you let the battery go flat, it will take about 4 hours of pedaling to charge it up to full again, which is a long and tedious process. The way to manage this is to pedal for 20 minutes, here and there, on days when you use the power pack to run small appliances. It’s a lot easier to pedal for short periods of time with a good rpm, than it is to pedal for long periods of time slowly.
It’s important to appreciate the realistic scope of human power. We are limited by the device we are using, but we are also limited by our own energy. For example, the average person pedaling will produce around 50 watts. It’s best to run appliances that take about the same amount of power or less.
Here are some typical run times for AC appliances using a power pack that has in the range of 18AH to 22 AH (indicates battery capacity). The maximum draw must be 5 A or less.
AC Appliance Run Time
|Laptop computer||25 Watts||6 Hours|
|13″color TV||60 Watts||2 Hours 30min|
|Compact Fluorescent light||14 Watts||10 Hours|
|Toaster||1500 Watts||0 – it won’t work, it draws too much power.|
Note: The battery in this and all power packs will self-discharge 10 % to 20% a month if just left sitting. If the battery drains and sits without recharge, the battery life will be dramatically reduced over time and it will become less likely to be able to hold a new charge. It’s very important to keep the battery topped up – either by Human Power or by plugging it into the wall overnight to recharge. For more information about this Black and Decker Power Pack,
The Power Pack can operate one 12VDC appliance that draws 5 amperes or less from the 12VDC power outlet. The maximum DC load is 144 watts.
Here are some typical run times for DC appliances:
DC Appliance Run Time
|Cell Phone||6 Watts||30 Hours|
|Small Portable Cooler||30 Watts||4 Hours|