This product had been around for 6 years, at a depth sounder in operation, now it was time to replace, since the power nachlies.Mit a full charge of the operation reached about 10-12 days. To prolong the enjoyment to be had in this battery, only a high-quality battery charger with pulse charge (a Ansmann- LG I use) should be used. Delivery on Amazon: as always fast and reliable. Unfortunately, the packaging has been opened by force (both cardboard bubble packaging was torn sideways, broken, so that the battery was loose in box, but had no external damage. After loading turned out that everything was OK.