Forrat Replacement for Bosch 18V Battery 5000mAh Lithium ion Compatible for BAT609 BAT612 BAT618 BAT619G BAT610G BAT620 SKC181-02 Bosch 18Volt Cordless Power Tool Battery 2Packs

I can't comment on the longevity, as we only purchased them recently. They have performed well so far.

It's early in the ownership experience, but all is 100% well. The batteries arrived on time, took a charge well, and powered tools. As such, they did everything promised.I'll update this review as I get more time with the product, see the real battery life, etc.

Well this is the first time that I have tried a replacement for the Bosch batteries. I bought a pair of the Forrat replacements. I have to say I had high hopes because initially both batteries were doing fine. They would run down a little faster than the Bosch batteries but that was OK given the significant price discount. However now I am quite disappointed because I bought them in late February and here it is May (yes only 3 months later) and one of the batteries is completely dead, ie, will not take a charge AT ALL. The other battery is doing OK but I can tell it is beginning to run down to. Buyer beware! I have had Bosch batteries for years before they did this not months. Clearly it is not worth the money. Very disappointed as my 30 day return window has closed.

These fit exactly like the Bosch batteries and work in the Bosch charger. They hold a charge well and put out slightly more voltage than my Bosch 2ah batteries. I got these to use with my oscillating saw. I’ve been using them for a little over a month and have had no problems. Time will tell if these maintain capacity as well as the Bosch batteriesUPDATE: Rating reduced to two stars. After 2 years of moderate use one of the batteries will no longer charge. I expected a lot more life from these batteries. I suspect that the protection circuit malfunctioned, since the battery still shows 16V but for some reason won’t charge.UPDATE 2: I disassembled the battery pack and found that the spot welds on several batteries came loose, and two of the cells are showing 0 volts.

Work great, put them few a few charge cycles so far building a big deck with an impact driver and no complaints so far.

works well and fits well. a little snug fit but working perfectly on all my Bosch tools.

I searched high and low for an affordable batteries for my Bosch drill. Stumbled across these and was hesitant to purchase. Wish I would have bought them sooner. They fit my original bosch charger! They charge within a half hour.I'll update my review after a few months of use. But so far so good...

Works just fine, but they don’t last any longer than the smaller standard Bosch batteries