Akumulator hollywood spv-20 12v, 1000w, 20ah

after charging): 100%: 12.85 V - OK, fully charged 90%: 12.77 V - OK, slight undercharging 80%: 12.65 V - acceptable discharge - maintenance charge recommended 75%: 12.50 V - necessary recharging - prolonged use may result in gradual deterioration of parameters 50%: 12.25 V - recharge as soon as possible - risk of rapidly progressing sulfation of the battery 25%: 11.90 V - recharge immediately - leaving it in this state will irreversibly damage the battery 0%: 11, 60 V - recharge immediately - leaving it in this state will irreversibly damage the battery. Storing or using the battery for a long time in a partially charged state (below 80%) may result in a gradual reduction of its parameters and, consequently, permanent damage to the battery. This type of damage is not covered by the warranty. In order to maximize the life of the battery, we recommend regular maintenance charging of the battery approximately every 2-3 weeks, using a charger with electronic control of the charging process, with the option of charging AGM batteries with a voltage of 14.7V (e.g. CTEK brand). IMPORTANT! If the battery is installed in the vicinity of strong heat sources (e.g. in the engine compartment), it is necessary to use additional bulkheads, housings or protective cassettes (e.g. SPV70C), protecting and insulating the battery against the direct harmful effects of high temperature. Lack of this type of protection results in reduced parameters and performance of the battery and may shorten its life or loss of warranty.