“Batteries need a good charger” I’ve had my battery powered weedwacker for about a year now. It came with 2 batteries and I have no clue where the supplied charger is, I don’t use it – it’s trash. I’ve got a big lawn, about 5/8th acre, but I can get it with the 2 batteries, I just have to quick charge the first for a 3rd run with a Schulze Isl6-330. You don’t have to have a $200 battery charger. One of the newer $50 RC toy chargers from china will work fine as long as it charges 15 cells, like an X-Charger B6 if you have a 12 volt power supply or a Thunder AC6 charger if you don’t. It just won’t charge at much over 2 amps, may take 45 minutes or so. My Schulze and HiTec 340 pro will recharge the batteries in about 20-25 minutes, the charge lasts about 15 in the tool. I could charge them faster, but the heat would kill them. I’m looking for a 3rd battery so I can rebuild the first 2 in rotation with premium industrial/RC cells. I have a local battery shop that does this and it will cost no more than buying a n…

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Product Description

Compatible with Black & Decker models NST2018, NST1810, NHT518, NS118, NPP2018, NPT3118, this powerful 18-volt battery lets you complete all your yard clean-up jobs without the mess and stress of wires. Longlasting, reliable, and a snap to both install and remove, the HPB18-OPE is ready to go when you are. For added peace of mind, it also comes with a 2-year warranty.
Features:
  • Compatible with Black and Decker models NST2018, NST1810, NHT518, NS118, NPP2018, NPT3118
  • Easy to install and remove
  • Powers your yard tools for efficient, wireless operation
  • Weighs 1.7 pounds (shipped)
  • Includes a 2-year warranty

They’d be great if they weren’t junk!
Looking at the other reviews, you either get a good battery that will last or one that won’t go beyond a few charge cycles. I have to say my batteries did not last very long and no longer hold a charge. I’m back to using my plug-in weed-eater and leaf blower….more info

Addictive and Fun
As one reviewer indicated the interchangeability of the batteries makes the entire Black and Decker 18 volt line very addictive. I find myself looking for tools that work with the batteries.

As for the batteries themselves the big positive is the interchangeability. There are two significant negatives. The first negative is that the charger that comes with the batteries and the tools is a dumb charger that does not tell you if it is complete or not. This is annoying. The second issue is the batteries are slightly anemic. Not bad since they are interchangeable but still a little more power and longevity would be nice. Don’t worry though. Black and Decker has a silver series of the batteries that purports to be 40% longer life.

Overall a great system and one I am please with….more info

Does not hold charge
I love the Black and Decker cordless products but these 18v batters are horrible. They do not hold a charge and I can only get at best 15 min. out of two of them. Now I have to buy more just to get my small yard done. What a waste of money….more info

Regular battery
B&D doesn’t really tell you the whole story about their batteries…

In my experience, this battery has 1.5 Ah cells, and unless HPB18 to which it is compared to has 1 Ah cells (which I doubt) it cannot have 50% more capacity. 25% is more likely and it was marketed as such for a while.

Adding to other review, I think I figured out number near the battery lock. First, you have manufacturing year and week along with some letters. And then there is three digit number, which tells you cell manufacturer (first digit) and capacity (two last digits). This is what I encountered:

412 – 1.2 Ah cells marked BD (most likely specifically manufactured for B&D) – usually FS18B and HPB18 batteries, but also some 244760. These cells are actually short Sub C (or 4/5 SC) and B&D puts plastic pad inside the battery, so housing has the same exterior size.

115 – 1.5 Ah cells without manufacturer identification

415 – 1.5 Ah cells marked BD

515 – 1.5 Ah cells manufactured by HANYU

All these are marketed as FSXtreme, HPB18-OPE, FS18BX and 244760

421 – 2.1 Ah cells manufactured by BYD – high capacity “Silver Series” FS18SBX. BYD is actually well known Chinese battery manufacturer, nice chunk of whose shares was recently purchased by Warren Buffett.

…more info