Our Yamaha Zuma got the big-bore treatment a while back from the guys at Drowsports in Signal Hill, California ( drowsports.com ), and until now we had been using the stock battery. But it finally died on us as it was straining more to turn the larger motor over on startup. So we reached out to the guys at Antigravity for a solution and they had one: the AG-801 eight-cell battery.
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The Antigravity battery is virtually the same size as stock, but that is the only similarity between the two. First off, the stock battery is only a 6 ampere-hour (AH) and the Antigravity is a 9 AH. On top of that the stock battery only produces 100 cold cranking amps (cca) compared to the Antigravity's 240 cca. They also differ in weight, with the stock battery coming in at 3.0 pounds versus the 1.1 pounds the Antigravity battery comes in at.
Crank time was around three seconds with the stock battery before firing up, and with the new AG-801 battery it is less than a second. If you beef up a small-displacement motor, we would suggest something from Antigravity.
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