Pooxtra 40 Volt MAX 2.5Ah Replacement Battery for Black&Decker LBX2040 LBX36 LBXR36 LBXR2036 40V Lithium Ion Battery(1 Pack)

============= Update =====================This battery functioned amazingly for 5 or 6 cycled, then it would no longer recharge. The charger just shows the red light, indicating that the battery is bad. I no longer recommend this brand. I'm done with Pooxtra.============== Original review ======================I love this big old battery. I use it with my Black and Decker weed whacker. That thing uses a lot of juice because I use it for quite a while at a time. The standard battery it came with *almost* has enough power but not quite so I always used to have to change it half way through. This pooxtra battery has plenty of power. I can do my whole front and back yards and it doesn't run out. I've never run it all the way down so I don't know how much power it really has, but it has solved an annoyance for me, so it gets 5 stars in my book.Perfect compatibility with Black and Decker charger and tools.

I use this with a Black and Decker LSWV36 leaf blower/vacuum, and it works perfectly. The LSWV36 came with a 1.5Ah battery, which didn't last long enough. This 2.5Ah Pooxtra has a little more to get the job done. I chose this battery because it uses Samsung/LG cells. This may cost you a little more initially, but you'll be glad you chose premium name brand cells in the long run. It's still almost half the price of the Black and Decker battery. Now if only Pooxtra made a 5Ah version with twice as many cells. That would be awesome!

UPDATE (12-2019): Charger now indicates this battery is bad. I took it apart and found LG 2100 mAh cells inside, which makes this a 4.2Ah battery and not a 5.0Ah. I measured the voltages of each cell, and found them to be ok, so I have no idea why the charger is saying it's a bad battery. Maybe the circuit board has malfunctioned.I have 2 of these, and they work great in my pole saw, alligator saw, hedge trimmer, and glue gun. I chose this one because it uses Samsung/LG cells.

The battery seemed like a great value compared to the genuine Black & Decker battery. It ran great when I first received it. But, not too much later, the battery would not charge. So I chose another replacement battery brand. The sad part is two generic replacement batteries cost about the same as a genuine B&D battery. Fingers crossed!

top popped off of battery tried to warranty the battery but now they are denying me warranty, they will not stand by there product, this happened within 6 months

I bought these originally for backups to my Black and Decker batteries for my mower. These outperform them by far!!! I can mow almost 3 times the amount on a single battery with these than the originals!!!!

I put this on my B&D pole saw and it gives mach more time before charges. It does make the appliance you are using it on heavier, but it's worth it.

Worked great for about 6 or 8 recharges, then totally died. Would not recharge. Do not purchase this battery.