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REVIEW OUR 5 PRODUCTS - BRAND NEW! 1st Time Available - Beginning 2011!

ONLINE RAMBO BATTERY™ - Build It™ Plans

Learn how to build the Rambo Battery™ and Porta-pak™ Power Station™ with our Step by Step Rambo Battery™ Build It!™ Plans. If later you decide you want to buy our Rambo Battery™ STANDARD OR MULTI-VOLTAGE product we will give you a $12.99 credit at time of purchase (time limited).
No Hardware Included - Online access info is delivered by email.

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THE RAMBO BATTERY™ Kit - Standard

Our Standard version is a kit that that contains the parts needed (except cells) to assemble a Rambo battery up to 19.2 volts. Includes parts to make 1 battery adapter from one of your old tool batteries. You can run any brand cordless tool at any voltage up to 19.2 volts. Includes the Rambo Battery™ Build It! Guide™.

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THE RAMBO BATTERY™ Kit - Multi-Voltage

Our Multi-Voltage Rambo Battery Kit contains the parts needed (except cells) to assemble a Rambo Battery that will, with the proper adapter that you make from your old tool batteries, power 3 different voltage cordless tools of any brand. Up to 19.2 volts. Includes the Rambo Battery™ Build It! Guide™.

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PORTA-PAK™ Power Station™ Kit - Standard

Our Standard version Porta-Pak™ Power Station™ Kit contains the parts needed (except cells) to assemble our portable power pak for any brand of cordless power tools up to 19.2 volts. We show you how to make an adapter from one of your old tool batteries. Includes the Rambo Battery™ Build It! Guide™.

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Porta-Pak Multi-Voltage Battery Power Station

PORTA-PAK™ Power Station™ Kit - Multi-Voltage

Our Multi-voltage Porta-Pak™ Power Station™ Kit contains the parts needed (except cells) to assemble our Multi-Voltage Portable power pak that will power 3 different voltage cordless tools of any brand up to 19.2 volts. Includes the Rambo Battery™ Build It! Guide™.

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The Rambo Battery and Porta-Pak are sold as kits that are easy to assemble. You either scavenge cells from other tool batteries such as Dewalt, Craftsman, Ryobi, Black and Decker, Makita, Milwaukee, Porter Cable, Hitachi, Skil, or Kawasaki, or buy new cells. Of course new Sub-C cells with tabs are the best choice but can be pricey. The more expensive brands of tools such as Dewalt, Craftsman, Milwaukee, and Makita use higher quality cells with more power output and with a higher charge rate and higher discharge rate. Cheap cordless power tools like drill master from Harbor Freight use the cheapest NiCD Sub-C cells. You can't expect much from these cells and they should not be used in a Rambo Battery™ or Porta-Pak™ Power Station™. Some other companies make some really cheap models of tools also like Skil and Coleman.
Battery Chargers that are the best to use are the universal chargers that will charge NiCD and NiMH batteries and detect voltages of 7.2 to 19.2 volts and some good chargers we like are the Makita and Milwaukee Universal battery chargers. We just tested the new Craftsman Li-Ion and NiCD charger and it charged a NiMH and NiCD Rambo Battery and Porta-Pak and the cells only got a little warm. We only charged one Porta-Pak made with Tenergy 2400 mAh NiCD cells with a Ryobi 1 hour charger and it cooked the cells, so we say do not use the Ryobi 1 hour Charger.
The little cheap charger that many companies make like Black and Decker, Skil, Hitachi, Firestorm, Coleman, Drill Master, and Bosch can be used to charge most Sub-C cells because the current output is only about 200 to 600 mAh. Since most Sub-C cells are 1200 mAh or greater there is little risk of cooking the cells when charging. The big risk with the cheap little chargers is overcharging the batteries because they don't have a brain to turn off the charger when it should be turned off. Most Quality companies like Dewalt, Craftsman, Makita, Milwaukee, Ryobi, Porter Cable, Black and Decker and Bosch offer smart chargers that turn off the charging when the battery is full. Don't forget about battery resurrection at refertoday.com

The Rambo Battery and Porta-Pak are sold as kits that are easy to assemble. You either scavenge cells from other tool batteries such as Dewalt, Craftsman, Ryobi, Black and Decker, Makita, Milwaukee, Porter Cable, Hitachi, Skil, or Kawasaki, or buy new cells.

Of course new Sub-C cells with tabs are the best choice but can be pricey. The more expensive brands of tools such as Dewalt, Craftsman, Milwaukee, and Makita use higher quality cells with more power output and with a higher charge rate and higher discharge rate. Cheap cordless power tools like drill master from Harbor Freight use the cheapest NiCD Sub-C cells. You can't expect much from these cells and they should not be used in a Rambo Battery™ or Porta-Pak™ Power Station™. Some other companies make some really cheap models of tools also like Skil and Coleman.

Battery Chargers that are the best to use are the universal chargers that will charge NiCD and NiMH batteries and detect voltages of 7.2 to 19.2 volts and some good chargers we like are the Makita and Milwaukee Universal battery chargers. We just tested the new Craftsman Li-Ion and NiCD charger and it charged a NiMH and NiCD Rambo Battery and Porta-Pak and the cells only got a little warm. We only charged one Porta-Pak made with Tenergy 2400 mAh NiCD cells with a Ryobi 1 hour charger and it cooked the cells, so we say do not use the Ryobi 1 hour Charger.

The little cheap charger that many companies make like Black and Decker, Skil, Hitachi, Firestorm, Coleman, Drill Master, and Bosch can be used to charge most Sub-C cells because the current output is only about 200 to 600 mAh. Since most Sub-C cells are 1200 mAh or greater there is little risk of cooking the cells when charging. The big risk with the cheap little chargers is overcharging the batteries because they don't have a brain to turn off the charger when it should be turned off. Most Quality companies like Dewalt, Craftsman, Makita, Milwaukee, Ryobi, Porter Cable, Black and Decker and Bosch offer smart chargers that turn off the charging when the battery is full.

Don't forget about battery resurrection at refertoday.com