Because the best customer reviews of Exide Premium Superior Power EA770 77Ah at a reasonable price, I decided to buy it. My "old" had 88 Ah, was heavy - 40% more expensive and yielded just under 4 years, despite nursing her mind these margins "new" was delivered very quickly and was fully charged. My motorhome Citroen C 25 Bj 89 has not been used 18 months, jumped with the "new" immediately. If the service life is also good, my Shopping Rating (5 star) would be fully justified. Yours sincerely, Karl-Heinz Linke