BOSCH GBA18V40 18V CORE18V® Lithium-Ion 4 Ah Advanced Power Battery

Me encantó que esta batería tiene tal vez más tecnología que la de 9 AMP de la marca amarilla pero es mucho más compacta, mucho más compacta que la XGT de 40V de 8 AMP de la marca verde. Algo aún más fantástico es que no te entregan la CORE que se muestra en las fotos sino la ¡¡¡“PROFACTOR”!!!…¡genial!. Respecto del cargador esta bien bonito y es sencillamente enorme de tamaño (como otros cargadores súperrapidos de la competencia). La batería y el cargador no se sobrecalentan durante la carga. Pero algo que me intrigó es que para llegar al 80% es súper veloz, pero de ahí al 100% se comporta raro pues lo deje conectado como tres horas más después del 80% y simplemente nunca se encendió la 5a luz en el indicador de carga en el cargador, no se cuanto tiempo más tarde en llegar del 80 al 100%, sencillamente termine retirando la batería de 8 AMP. Ningun problema con este starter kit y muchas sorpresas

Bought a few of these. 8ah is the sweet spot, IMO. Not too big or heavy but plenty of power and use. I would imagine 12ah would be too cumbersome to carry around but has a better run time than 4ah, obviously. Great for more constant use tools like angle grinder, sanders, saws, etc. Still using a standard charger so takes 2-3 hours to charge a dead one.

I had a bunch of smaller Bosch batteries and would have to swap them out to finish long jobs, but this one just keeps going and going and going. It didn't last so long the first time around, but ever since then it's been killer -- I think it just needed to good first recharge. Also, I'm charging it with my old small-battery Bosch chargers, so it probably takes longer to recharge than it would with a newer fast-charge charger, but that's not a problem -- I don't use it so fast that I need a quick recharge. Very, very happy with this battery.

Tengo baterias originales y económicas, no se comparan, les recomiendo estas que son originales

Buy the real deal! I thought I found a great deal on a battery for my Bosch tools. Unfortunately I didn't look closely and it was an off brand battery. Looked pretty much the same - but it wasn't. Of the two 8 ah batteries I bought one wouldn't take a charge at all and the other would take a charge but only last for about 10 minutes of use. I finally bit the bullet and disposed of the bad batteries and bought new, Bosch brand batteries. Such a relief to have them last as they should. Don't cheap out because it isn't cheaper in the long run.