deals → ripa solar chargers/batteries for mobile phones…

169
RIPA Solar Chargers/Batteries for Mobile Phones & Tablets

RIPA Solar Chargers/Batteries for Mobile Phones & Tablets for $29.99 + $9.99 shipping

Mar 2, 2012 9:33 PM

Store up that energy now before we reach Peak Sun.

@ dvor.com

prettywootprincess prettywootprincess

20 Comments add a comment

Sort By:

vote-for5vote-against

Specifications for RIPA CH2168 Deluxe Solar Panel and Battery Charger:

Compatibility: USB 2.0
Battery power: 2600 mah
Battery type: Lithium polymer
Features of RIPA Solar Charger and Storage Battery:

Charge the internal battery with sunlight or through the USB cable
Charge other devices through USB port
Upgraded solar cell panel with exchange rate up to 24%
Normal 17% mono crystalline silicon on solar chargers
4 bright LED lamps can be used as a flashlight
Built-in charging LED indicator
Package Contents:

RIPA CH-2168 Deluxe Solar/Battery Charger
Mini USB charging cord
(6) adapters:
iPod / iPhone
Micro USB
Nokia 2.5mm
Nokia 3.5mm
Sony Ericson
Universal USB

bkarlan bkarlan
vote-for-20vote-against

Link about 15 of these together and you'll get enough juice to power your cell phone. Energy ideology at it's worst.

justabandnerd justabandnerd
vote-for14vote-against

@justabandnerd: Please show your work

stark stark
vote-for5vote-against

I'd be interested in some real world experience on how well these would charge/top-off an iPhone.

tsfisch tsfisch
vote-for-2vote-against

I just read here the 2600mAh rating for its internal storage

i WAS gunna make a comment about its input/output ratings, but at 2600 for $30 freaking dollars??

lol yup, only an idiot would buy this device, no thank you PASSSSSS

cheers!

thaskaman thaskaman
vote-for-7vote-against

Let me call Solyndra so they can doctor up some numbers again.

justabandnerd justabandnerd
vote-for15vote-against

The Nomad 3.5 solar panel on www.goalzero.com is rated at 3.5 watts and they estimate it would take 2 to 5 hours to charge your phone from solar.

The RIPA 2 is rated at 1.3 watts. It would take all day to charge anything from solar. The best use would be to charge the RIPA from the USB cable to use as a backup battery.

Or maybe keep the battery charged from solar to use as an occasional (i.e. not everyday) backup.

marcusdavidwong marcusdavidwong
vote-for-1vote-against

@marcusdavidwong: in other words, this is going to end up in someones junk drawer because it's impractical.

justabandnerd justabandnerd
vote-for2vote-against

@justabandnerd: Is that what he said? It seemed to me that he said that it would function well as a backup battery, but maybe I'm just letting my personal biases read into everything I see or hear.

stark stark
vote-for4vote-against

There simply isn't enough information to make any reasonable assessment of this thing's battery, implying it's crappy. It has a 2600mAh battery, but at what voltage? Don't say 5V because it's USB, that's the converted output, not the internal battery. A step-up transformer could take a 1V internal battery to 5V, meaning this thing may only have a 2600mWh battery, about that of a good AA battery. Or it could be a 100V battery, yielding 260Wh, several times as much power as my laptop's battery. Who knows.

On a side note, I looked at the RIPA 2 on their site for more information and they specify a mAh rating for their output current. Come on guys, wrong unit.

huikmn huikmn
vote-for4vote-against

Way overpriced. I bought a similar solar charger (Power Curve) recently for $10. Actually, I bought two of them. They are a little bulky, but they work....good for use at our camp where electricity hasn't been discovered yet.

michoutdoors michoutdoors
vote-for3vote-against

Most smartphones need 5 watts (1 amp x 5 volts) to charge effectively. I have a solar battery with similar specs and I have yet to ever charge the battery completely using solar only. In fact, more often than not, it's too weak to even power the charging indicator LED.

Basically this is a USB rechargeable spare battery. Don't expect miracles from the "solar" aspects.

dpwellman dpwellman
vote-for5vote-against

Multiple people are saying "this is essentially a rechargeable battery, treat it as such". Since you can get a rechargable battery on eBay for < $10 shipped (and indeed I have one), I think I'll pass on this for $30 shipped.

tsfisch tsfisch
vote-for3vote-against

So these are made by Kelly Ripa?

dreadmon dreadmon
vote-for1vote-against

Excited by the prospect, disappointed by the specs. Anyone know of practical units from experience? (links please?) Thanks!

adamstimothy adamstimothy
vote-for2vote-against

Specifications for RIPA II Solar Charger CH2139:

Battery: Built-in High Capacity 4000mAh Li-ion Battery
Solar Power: 1.3W
Output Current: 400-1200mAh
Output Voltage: 5V/9V adjustable
Charged by Computer: 5-6 Hours
Charged by Solar Power: 18-20 Depending on how strong the sunlight

volt x amp = watt
V x A = W
W/A = V

For the larger RIPA 2 charger

1.3/1.2 = V

1.083 V solar output for a bright sunny day

18 hours of 1.2 Amp @ 1.083V

18 x 1.2 = 21600 mAh @ 1.083V

converting to 4000mAh battery

V x Ah = Energy
VxAh of charging energy = what V x 4.0Ah battery energy?
21.600 x 1.083 = 4.000 x ?

21.6x1.083/4 = 5.85 V

BAttery specs = 5.85 V with a max capacity of 4 Ah

Solved... (assuming 100% efficiency for all electronics between the solar cells and the battery)

cheffboyrd85 cheffboyrd85
vote-for1vote-against

@cheffboyrd85: I think you're assuming that the 1200mAh[sic] is 1.2A output from the solar panel. I believe it's the maximum output current from the battery when operating a 5V device. According to wikipedia, lithium ion batteries have a nominal cell voltage of 3.6-3.7V. This battery is probably some multiple of that.

I hadn't considered using charge time to compute battery capacity. They say 5-6 hours by computer. Assuming it's 6hrs at 5V and 500mA (USB standard), that makes this battery at most 15Wh, or 3.75V. It's at best the equivalent of about 6 AA eneloop batteries, which is pretty good.

That was all for the more expensive RIPA II. The RIPA advertises a 2.6A battery instead of a 4A battery. Assuming it's a similar 3.75V cell, that makes it about 10Wh, or 4AA's.

huikmn huikmn
vote-for2vote-against

Use the code "10off" to offset the shipping.

yoshikami yoshikami
vote-for1vote-against

Any site that requires me to "join" to see their offers isn't going to happen

mebekili mebekili
vote-for1vote-against

Dvor.com is a great site. Been a member for over a year. However, these RIPA 2 chargers (I bought 2 of them) WILL NOT CHARGE my new iPad (iPad3). They worked fantastic for my iPhone and my wife's Droid. But I did not buy them to charge those devices, so I returned them. Oh, and the manuals are absolutely crap. Written in some pseudo-English/Chinese translation with very poor instructions.

speedquest speedquest

Stats

Added
Mar 2, 2012 9:33 PM
Added By
prettywootprincess
Clicked
5538 times
Commented On
20 times
Expired
6 months ago
Viewed
7144 times
Voted Against
14 times
Voted For
183 times

Similar Deals

Related Questions

Not a farewell, just a forced redirect.

It's true, Local.Woot is no longer, but please don't despair.

Never-ending savings are still to be found on Deals.Woot each and every day, so come on in. Don't think of it as a time for tears. Think of it as a way to bring us all closer together under one roof.

Sorry

This is only for people who have bought woots

We restrict voting to users who have purchased something from one of the other Woot stores. It's not just because we want your money (which we do) - it's the best way to be sure all the votes are coming from real people and not spam-bots or phony accounts. The best way we can think of, anyway. For now.

You can always get voting rights by buying something from one of Woot's other sites:

Purchases through Deals.Woot don't count, because in that case you're not buying anything from us. And we don't have your account information for those purchases.

If you think you've bought something from Woot before and still can't vote, make sure you're logged in with the same account you used to buy from us.

Geez, why so negative?

You have to vote up more before you can vote down.

Don't get us wrong. Negativity has its place. And downvotes are just as essential as upvotes when it comes to making Deals.Woot a useful place to find deals.

But when your votes lean so heavily toward the dark side, we have to wonder. Go vote up a few things. Accentuate the positive for a little while. It'll do you some good, and it'll do the site some good, too. Then you can get back to dealing out the smackdowns, OK?

Too late, we all heard you!

Hmm... you're wanting to take your vote back?

Well, that's a bit tricky. See, we do a lot of stuff with your vote, using it to work out the popularity of what you voted for, compare that to all the other things voted on, tally up our leaderboard, work out your reputation. Someday we'll do a little cartoon showing just how hard your vote is working.

Anyway, taking votes back messes all that up, so we give you five minutes, in case you just mis-clicked. After that we've got to say no take-backs. Luckily, votes are free, so feel free to throw them around left and right wherever you see fit.