Lead-acid batteries are the heaviest and bulkiest type of general purpose batteries. They’re also the least expensive, but their performance is poor in high-drain devices and they require regular maintenance to prevent sulfation. Shen PK, Tseung ACC, Kuo C (1994) Development of an aluminium/sea water battery for sub-sea applications. J Power Sourc 47:119–127. https://doi.org/10.1016/0378-7753(94)80055-3 Lee B, Yoon CS, Lee HR, Chung KY, Cho BW, Oh SH (2015) Electrochemically-induced reversible transition from the tunneled to layered polymorphs of manganese dioxide. Sci Rep 4:6066

The LP series is a collection of general purpose, AGM VRLA lead-acid batteries manufactured by Leoch, one of the largest multi-range battery manufacturers in the world. This versatile series is suitable for use in many applications, including: Hao JW, Mou J, Zhang JW, Dong LB, Liu WB, Xu CJ, Kang FY (2018) Electrochemically induced spinel-layered phase transition of Mn3O4 in high performance neutral aqueous rechargeable zinc battery. Electrochim Acta 259:170–178 Kundu D, Hosseini Vajargah S, Wan L, Adams B, Prendergast D, Nazar LF (2018) Aqueous vs. nonaqueous zn-ion batteries: consequences of the desolvation penalty at the interface. Energy Environ Sci 11:881–892 Xu C, Li B, Du H, Kang F (2012) Energetic zinc ion chemistry: the rechargeable zinc ion battery. Angew Chem, Int Ed 51:933–935 Renuka R (1997) AgCl and Ag2S as additives to CuI in Mg-CuI seawater activated batteries. J Appl Electrochem 27:1394–1397. https://doi.org/10.1023/A:1018481314511Peramunage D, Dillon R, Licht S (1993) Investigation of a novel aqueous aluminum/sulfur battery. J Power Sourc 45:311–323 https://www.distrelec.de/en/alkaline-primary-battery-5v-lr14-gp-batteries-gp-14au-s2-lr14-ultra/p/16925044 The field of general-purpose batteries has made significant progress in recent years. Many companies are actively involved in research and development to improve energy storage capabilities.

Blake IC (1952) Fiftieth anniversary: the anniversary issue on primary cell: silver chloride-magnesium reserve battery. J Electrochem Soc 99:202C. https://doi.org/10.1149/1.2779735 Xtar have also ensured this charger has protection against reversed polarity, overcharge, short circuit, excess current and over-temperature to ensure safe charging.In general, the sealed lead acid battery can last anywhere between 300-1200 cycles, depending on the type. A well-maintained gel or AGM battery can average 7 years of use. ce{Ag Yoshino A (2012) The birth of the lithium-ion battery. Angewandte Chemie - International Edition 51:5798–5800. https://doi.org/10.1002/anie.201105006