I bought a pair of these about 2 months ago now. Having used this pair of batteries on and off quite a bit over that time, I will express my thoughts of them at this point.
At first, I thought these were GREAT batteries. Advertised at 40 amp, I was sure they meant 40 amp PULSE. Never really have pushed the limits with these.
However, these DO have a good punch, compared to a Efest 20/35 amp (purple). But they MAH rating, HAS to be off. These have never run as long as a pair (or singled) as the Efest's have.
They perform, but not at a level as advertised, IMO. There exist better batteries on the market.
So in short, from MY personal experience with them, you would be better off passing on them and buying something better for the money.
At first, I thought these were GREAT batteries. Advertised at 40 amp, I was sure they meant 40 amp PULSE. Never really have pushed the limits with these.
However, these DO have a good punch, compared to a Efest 20/35 amp (purple). But they MAH rating, HAS to be off. These have never run as long as a pair (or singled) as the Efest's have.
They perform, but not at a level as advertised, IMO. There exist better batteries on the market.
So in short, from MY personal experience with them, you would be better off passing on them and buying something better for the money.