Introduction: PSP Portable Power

I needed a way of charging my psp at work, I work in earthmoving equipment where 12v is not always available. So I made this up from mashing up various other instructables. Don't try this and blame me when you fry your PSP - always test the final product with a multimeter and ensure the polarity is correct before plugging in your PSP.

Step 1: Get the Goods

Bits you will need......

PSP case
Two old garden solar lights (the two AA flavour)
4 AAA Nimh Batteries
Tape
Foil
5volt regulator link
Shrink tube
Spare wire
PSP Plug

Step 2: Break Stuff Up

Trash the garden lights remove the solar panels and one of the diodes which look like the image shown. Solder wires onto the solar panels, poke the wires through the lid and mount the panels with glue to the lid.

Step 3: Battery Pack

Make up the battery pack, postive to negative to get your 5v, fold up the foil and use it to bridge the terminals, attach the tape nice and tight to ensure good contacts. I used some 9v plugs to make it easier to remove.

Step 4: Solder On

Wire up the diode and resistor as shown in image, make sure they are the right way around (the current only flows one way) before soldering by testing with a multimeter (I had photos on my laptop but my dog ate them), check voltage with multimeter. Put layers of shrink tube on to stop any wires from breaking. Solder on the plug, test and re-test.

Step 5: Enjoy!


Comments

author
MediocreNinja (author)2010-12-15

Your dog ate photos on your laptop? How is that possible?

author
mail fail (author)2010-05-26

what does solder mean

author
Adum24 (author)mail fail2010-06-08

Seriously (no offense)? It means using a soldering iron to heat up solder (a small tube of metal) and wiring electronic components with it.

author
knektek (author)2010-02-06

you need a switch for power to the regulator. even if it is not plugged in, the regulator will draw current.

author
beehard44 (author)2009-09-29

I was wondering if i can use the nokia batteries that give around 3.6v if i am not mistaken and use it directly. An added feature is that it can be recharged with a Universal Battery Charger

author
Tombini (author)2008-06-11

although quite complicated and crude Very Clever! How much would it cost in total?

author
daiatlus79 (author)Tombini2009-06-26

pfft.. i bought solar lights at my local walmart for like 4 bucks a piece.. they are dirt cheap...

author
Tombini (author)daiatlus792009-06-26

Where would you buy them in Australia?

author
daiatlus79 (author)Tombini2009-06-27

any 'big box' store or discount store.. i am in canada so i don't know for sure

author
Belleye (author)Tombini2009-06-27

Bunnings?

author
luketanti (author)2009-02-18

If you are using 4 re-chargeable batteries the regulator will not be needed. Total voltage of the batteries is about 4.8v. The regulator at least it wants about 7v. So without it it is better. But nice Idea!!!

author
daiatlus79 (author)luketanti2009-06-26

smart actually... you never know when something can short and spike the power.. consider the regular an insurance poilcy or food for thought

author
Belleye (author)daiatlus792009-06-27

4 batteries plus the output of the solar panels would exceed 5v well that's what I thought back when I made it.

author
LasVegas (author)2006-12-05

Without any charging logic, you'd be safer using NiCad batteries for this rather than NiMH that could potentially be overcharged and destroyed.

author
Belleye (author)LasVegas2006-12-06

I thought any extra power would be vented off in heat, and not a generate that much heat because of the low power output of the solar panels considering they were originally designed for AA NiCad batteries that had no charging logic.

author
LasVegas (author)Belleye2006-12-06

The current of the solar cells is low enough that the NiCad's internal resistance will stop the charging process on their own. The only problem with NiCads is that if you recharge from a partial discharge often enough, they develop a "memory" and seem to run dead quicker. Just periodically run the batteries completely dead. NiMH requires more logic to avoid damage to the cells. Even most consumer battery chargers don't have enough logic. It's very easy to fry NiMH batteries by putting already charged batteries into a charger. You should always let a NiMH battery run dead before recharging.

author
daiatlus79 (author)LasVegas2009-06-26

zapping nicads with a high current like a welder will decrystalize them (thats what happens with nicads.. they crystalize and lose their potency). a welder notwithstanding, something else of high current for a split second can fix it as well.. but the NiMH arent as dangerous as you would think.. the cheap chargers will kill them though if you arent careful.. the good ones like energizer have the shut offs in them that checks them for current

author
futbolfreak129 (author)2008-01-11

i am hoping that you do not keep your psp in the case when you are charging it... that to me just spells disaster. if you are leaving a black case in the sun for long enough for it to charge your psp wont the case and what ever is in the case get really hot?

author

there is no more space for the psp. you just couldn't put it in :+) There will be place for some UMD's, though.

author
Belleye (author)futbolfreak1292008-01-11

not if the air conditioner is on ;)

author
futbolfreak129 (author)Belleye2008-01-12

oh I didn't realize the cab was inclosed

author
MELEGO351 (author)2008-08-22

Has anyone successfully done this yet? Any experience? Looks great but i would like some feedback before i try, in case i fry my psp Thanks

author
yaotal (author)2007-03-26

is it possible to use the solar w/o the battery to charge the psp while using the psp at the same time?

author
knex hater hater (author)yaotal2007-06-03

well, that might be possible, but the charge to play ratio wont be equal, i think the psp batterie will be depleted if you play it while charging.

author
Raikengan (author)2007-02-23

what happens with the solar panels is that psp runs off the batteries but the batteries need a charger so thats what the solar panel does so the batteries have some "juice" left to run or charge or both the psp or anything that runs off of 5v

author
bostrees (author)2006-12-05

Uh... maybe it's too early for my brain to be working, but what's the point of the solar panels?

author
Belleye (author)bostrees2006-12-05

maybe it is..... maybe the solar panels recharge the batteries, read the first sentence.

author
bostrees (author)Belleye2006-12-05

I read through it, it looked like all you made was a battery pack for your PSP, hence my confusion at there being what at first glance looked like a secondary power source.

author
Belleye (author)bostrees2006-12-05

Yeah would have been better if the first lot of photos had not currupted on my CF card.

author
chuckr44 (author)2006-12-05

Solar panels alone do not make enough voltage to power most devices, so they are usually used to charge batteries.

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