NinjaBatt Laptop Battery for Sony Vaio VGP-BPS13S VGP-BPS21A VGP-BPS13/Q VGP-BPS13 VGP-BPS13B/Q VGP-BPL13 VPCCW21FX VGN-AW VGP-BPS13/S VGP-BPS13Q VGP-BPS13/B - High Performance [6 Cells/4400mAh/49Wh]

so far so good, it is holding the charge.

The Ninja Battery arrived right on schedule, and as advertised. I have an "obsolete" SONY VAIO (and I hate that term). Anything that still works fine should not be called obsolete - including ME! Of course I couldn't easily find a SONY replacement for my old, original battery. Ninja saved the day.Perfect fit, it was in in less than 10 seconds. Low on charge as it arrived (I don't know who the people are who think they should arrive fully charged) - it charged perfectly - normally. I have not run a test on longevity of charge, but I think this old computer only lasted 2.5 hrs when new. If it does not do the same, I will update this post.The battery looks like it is high quality, and feels well-made. I am completely satisfied.It's easy: Find your model number on your laptop, look at NINJA Batteries that include THAT number, and Voila! Problem solved at a reasonable price!

Powered up my dead F series VPCF13AFX without issue. Have only used for a few months, but good so far. Fit is 98% to original and is tight which is what matters. Although the battery is working fine and the percent charged can be viewed in Windows, Vaio Care shows it as needing to be replaced. Not a problem to me since I don't really use Vaio Care, just something to note.

Unlike my old battery, this one manage to retain it. I hate the fact my laptop just shut off 1 minute after I pull the power. This battery will make sure it stay on for as long as time allow it.

It took longer than expected for me to receive the battery(which i thought might have happened) so I was OK with that. I was reading the reviews of the battery and some said that you can get up 4 to 6hrs of battery life without it being plugged in. SO when then the battery came. (It came with a charge to it). I depleted the charge (let the battery run all the way down). Before the battery went completely dead, it said fully charged at 70% 4hrs. I let the battery die, and then recharged it all the way to 100%. The battery life on this is only 2hrs 30 mins. I was hoping for the 4 to 6hrs. In all, it's a good battery so far.

.Only have had this battery for a few days and it went into a computer that I do not use often. It charged quickly and the presentation out of the box & packaging were impressive. Hopefully the battery life will be too.

More expensive than most but seems to work fine.

After a while laptop batteries go bad so I was happy to find this replacement for my aging laptop. I was surprised to find a battery for my laptop because it’s around ten years old now but it still works great thanks to this new battery. I’ve had the new battery for about six months now and it still holds a charge very well.

The battery seemed new, but even after an initial full charge it only held ten minutes of charge - useless!Don't waste your time on Ninja Batteries - buy a better-reviewed brand.

Bought for my Sony note book charged fully great battery life easy to use would buy again

After inserting this battery into my laptop and fully charged to 100%,I turned off my laptop.Two days later I turned on my laptop and the battery had reduced its charge down to 72%.This is atrocious due to the cost of this battery.Recommended to avoid.

Excellent service, arrived on time and popped it straight in, working great

I have had the battery now for about a month, what can I say, it does what I it says on the can. It was simple to fit, one full charge and ready to go. Nice product, good delivery and fair price. What's know to say.