EarthX Lithium starting battery.

This lithium battery will start the ECV-980 40hp engine with ease, and at 2.6 lbs! In fact it turns the motor faster than even the PC625 625amp rated AGM. EarthX has an exclusive fully integrated battery management system (BMS) to protect the cells. –2 year full coverage warranty (Not a prorated warranty that offers you the replacement at a discounted rate if they don’t void the warranty) -can be used on it’s side or even upside down Use TM291 charger. The reasons you would choose such a battery are; longevity, light weight, cranking performance and very low self discharge. Model Price Volts AH (1C Rate) Crank Amps (PCA/CCA) Weight Size ETX24C $269 13.2  7.8 420/270 2.6 lb (1.2Kg) 5.9 x 3.4 x 4.5in (150 x 86 x 115mm) ETX36C $369 13.2 12.4 680/320 3.9 lb (1.8Kg) 5.9 x 3.4 x 4.5in (150 x 86 x 115mm) ETX36D $369 13.2 12.4 680/320 3.9 lb (1.8Kg) 6.9 x 3.4 x 6.1in (175 x 86 x 155mm) From EarthX, "EarthX batteries are designed to be a replacement of a standard 12 volt lead-acid