anybody have experience with generic 9 cell?

really cheap on ebay, but am wondering if they are any good?

sorry if this has been discussed, did a search and couldn't find an answer.

 

I bought one of those generic 6 cells battery for my x201 and the capacity drop like half in less than 5 cycles. The new 6 and 9 cells lenovo battery use 18650 lithium ion cells. The best 18650 lithium ion is made by samsung(cyan) and LG(pink). These samsung/LG 18650 cells is about $10 on ebay each. I bought some really cheap 18650 cell and only have about 1/4 of the capacity of the samsung/LG cell and i believe those generic 6/9 cells all use these cheap 18650 cells and thats why they are only $30-40. I would rather spent money to buy a used one.

 

good to know, thanks.

 

Lesson learned here is buy genuine OEM Lenovo batteries from a reputable Ebay reseller. 3rd party knock offs tend to die alot faster. Also buy OEM not OEM compatible batteries.

 

I bought a 12-Cell battery on eBay for a Dell (AGPTEK-branded), and the capacity dropped by 12% after the first charge, so I RMA'd it.

 

Generic means a million things. Therein lies the problem.

Knockoff batteries can have cells from a number of different manufacturers in them; some vendors might even combine cells from different vendors in the same battery if they're really doing it on the cheap. One knockoff battery isn't necessarily the same quality as another, and there's no guarantee of consistency from one to the next. Many are not made to the quality-control standards of OEM batteries. This can result in higher potential for corrosion, leakage or fire.

Even the Ray-O-Vac "brand name" batteries we have bought at work for our Dell Latitudes have been average. The outer plastic casings aren't as tough, and are vulnerable to cracking, especially as the cells warm during use, and cool down when off. The longevity doesn't compare to Dell either.

There are a few things I'll never buy generic to save money. Inkjet cartridges, laptop chargers, and laptop batteries are on that list.

 

For what model? I got mine from the outlet for $35. 0 cycles, doing great.

There's 9cell on there for $50:

'Supports T500, R500, W500, SL300, SL400, SL500, Z60m, Z61m, Z61e and non 14Wide T60, R60, T61, R61 ThinkPad models (does not support 14.1" wide models).'

 

I used one on an old computer about 5+ years ago. It worked very well for my Averatec 2155 and got me years of great battery life.

 

x201.

i have noticed a lot of playing around with branding and compatibility. i'll just stick to the oem ones if i can score one on the cheap. as it is i am very happy with my 6 cell mileage.

 

Don't waste money on these, some of them won't last over 6 months. Waste of your money, and also you could endanger yourself by using these generic batteries.

 

If you got it from the outlet, it's an OEM battery. That means you get the quality control.

I don't know what Lenovo's guarantee is on outlet batteries, but at that point you're not getting a knockoff, or the problems associated with them.

 

+1 - Problem with buying a generic battery is that you don't know exactly what you're getting. Sometimes they don't even go through the basic safety procedures and approval standards (despite having stickers which say so… meaning you may risk yourself to harm should they fail (especially if it explodes). Plus its unlikely they have tested the battery under lab conditions to make sure it performs as it should.

For sure, while some OEM batteries do fail prematurely at least you can raise the issue with the manufacturer. With generic batteries since they usually come from a various sources it would be harder to chase up on them for liability. For me buying a generic battery can be false economy so I rather stick with OEM for safety and convenience.

 

I guess I should have mentioned its all in the battery manufacturer. Mine wasn't an oem, but was made from a decent source. Honestly I would steer clear of ebay batteries.

 

Same. I've had good luck with Denaq, and of the non-OEM makers, I trust them the most. Still, I tend to prefer OEM batteries unless new ones aren't available (as is the case for many older models.)

 

Yeah I forget which brand I got for my averatec, but it worked for 3 years and got me 5+ hours (good for an original amd turion mt40). I loved that computer and honestly would still be using it if the motherboard hadn't died.