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| Subject: [PSP HardMod] Build your own Portable Battery Charger Mon Sep 08, 2008 2:00 am | |
| A Free-Be Fun Tutorial Auri Rahimzadeh Tutorial Source Here’s a quick, cheap solution for building your own portable battery pack. You’re going to spend about $25 on this solution, but it’s easy to build a number of battery packs and the batteries are interchangeable and charge quickly. Unlike when you use the Pelican Power Brick, you can put the 15-minute rechargeable battery solutions available from Energizer, Rayovac, and many others, in this battery pack and have it ready to go in under 20 minutes (after it’s built, of course). Here’s what you need: |
- Four-battery AA battery holder with a snap connector, available at Radio Shack (about
$3, model number 270-383)
- Four NiMH 1800 mAh or greater AA rechargeable batteries
- The charger for the lithium ion batteries (about $10–$20)
- 9V battery snap connector (Radio shack model number 270-325; about $1.99.
- A Radio Shack DC power plug to connect the battery pack to your PSP (Radio Shack
model number 274-1532; about $2.59: usually found in their “B” bin.
- A soldering iron and solder so you can connect the DC power plug to the battery snap
connector
| Step 1: Charge the Batteries and Place Them in the Battery Holder Charge the batteries with their associated charger and place them in the battery pack. This is where you will be glad you purchased the quick-charge batteries, because they can be charged right before you go to school, to work, or on a trip (no more overnight charging). | Do not charge quick-charge batteries at the same time with other non–quick-charge batteries or other quick-charge batteries of a different brand. Most chargers warn you about this, but I’m reiterating the fact. Some batteries were not made for quick-charge chargers, and the results can be anything from all batteries charging slowly, to battery leakage or battery explosions. Be careful and read the instructions that came with your charger! | Step 2: Solder the Snap Connector to the DC Plug Unscrew the power plug casing and you will see two connections—one on the outside and one on the inside. On the PSP, positive (+) is the center pin while the outside is ground (-), so you need the red wire from the snap connector soldered to the inside contact, and the black wire to the outside connector. Before you start soldering, make sure you run the wires through the DC plug’s casing | !!Make sure the wires and their respective solder don’t touch each other or you will short your batteries and possibly damage your PSP!!. | The snap connector wires run through the DC power plug’s casing
Apply the soldering iron to the surface you are soldering, not the solder, otherwise you may get a cold solder joint, which may not let enough current through and your battery pack may not work.If you don’t know how to solder, get a friend who does to help you. I used a Cold Heat soldering iron because it’s clean, easy to use, and wireless although it’s harder touse on small components like the DC power plug. If you are buying your first soldering iron, you may prefer a classic soldering iron because it’s more straightforward. | Step 3: Play Well, that’s it! Plug the power cable from your battery holder into your PSP and you’re good to go. Your new battery pack charges your PSP’s lithium-ion battery while you play. Your PSP should automatically stop drawing power from the battery pack once it is charged. However, I suggest unplugging the external battery pack when it’s not in use, or when the light on your PSP goes from orange (charging) to green (charged). You should also consider buying a battery pack cover from Radio Shack for additional protection. | I followed this tutorial myself and its pretty useful if you can't find a Outlet or Car Outlet. Charge on the Go, useful yet simple. | |
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