[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-1-en-105":3,"doc-seo-568795-105":53,"doc-detail-568795-en":127},{"code":4,"msg":5,"data":6},0,"success",[7,14,19,24,29,34,39,44,49],{"id":8,"doc_module":9,"doc_module_name":10,"category_name":11,"show_sort_weight":12,"slug":13},11,1,"Template","Presentations",90,"presentations",{"id":15,"doc_module":9,"doc_module_name":10,"category_name":16,"show_sort_weight":17,"slug":18},12,"Resumes",80,"resumes",{"id":20,"doc_module":9,"doc_module_name":10,"category_name":21,"show_sort_weight":22,"slug":23},14,"Invoices",70,"invoices",{"id":25,"doc_module":9,"doc_module_name":10,"category_name":26,"show_sort_weight":27,"slug":28},15,"Posters",60,"posters",{"id":30,"doc_module":9,"doc_module_name":10,"category_name":31,"show_sort_weight":32,"slug":33},16,"Social Media",50,"social-media",{"id":35,"doc_module":9,"doc_module_name":10,"category_name":36,"show_sort_weight":37,"slug":38},17,"Forms",40,"forms",{"id":40,"doc_module":9,"doc_module_name":10,"category_name":41,"show_sort_weight":42,"slug":43},18,"Letters",30,"letters",{"id":45,"doc_module":9,"doc_module_name":10,"category_name":46,"show_sort_weight":47,"slug":48},21,"Paper Templates",5,"papers-templates",{"id":50,"doc_module":9,"doc_module_name":10,"category_name":51,"show_sort_weight":4,"slug":52},158,"General","general-158",{"code":4,"msg":54,"data":55},"ok",{"site_id":56,"language":57,"slug":58,"title":59,"keywords":60,"description":61,"schema_data":62,"social_meta":120,"head_meta":122,"extra_data":124,"updated_unix":126},105,"en","agm-deep-cycle-batteries-voltage-state-of-charge-explained","AGM Deep Cycle Batteries - Voltage & State of Charge Explained","","Guide to understanding AGM deep cycle battery voltage behavior in a 12V system, including typical charging and loaded voltage ranges. Explains resting voltage measurement—disconnecting chargers and loads for at least a couple of hours for accurate readings—plus what voltage levels generally indicate about state of charge using provided status thresholds. Covers how voltage drops under load, why temperature, age, and condition change readings, and why judging charge during discharge is difficult, concluding with a practical advice to recharge with a portable solar panel when in use.",{"@graph":63,"@context":119},[64,80,102],{"@type":65,"itemListElement":66},"BreadcrumbList",[67,71,74,77],{"item":68,"name":69,"@type":70,"position":9},"https://docshare.wps.com","Home","ListItem",{"item":72,"name":10,"@type":70,"position":73},"https://docshare.wps.com/template/",2,{"item":75,"name":51,"@type":70,"position":76},"https://docshare.wps.com/template/general/",3,{"item":78,"name":59,"@type":70,"position":79},"https://docshare.wps.com/template/agm-deep-cycle-batteries-voltage-state-of-charge-explained/568795/",4,{"url":78,"name":59,"@type":81,"image":82,"author":87,"headline":59,"publisher":90,"fileFormat":93,"inLanguage":57,"description":61,"dateModified":94,"datePublished":95,"encodingFormat":93,"isAccessibleForFree":96,"interactionStatistic":97},"DigitalDocument",{"url":83,"@type":84,"width":85,"height":86},"https://docshare.wps.com/thumbnails/agm-deep-cycle-batteries-voltage-state-of-charge-explained/568795.png","ImageObject",442,249,{"name":88,"@type":89},"นรินทร์","Person",{"url":68,"name":91,"@type":92},"DocShare","Organization","application/pdf","2026-10-25","2026-10-13",true,{"@type":98,"interactionType":99,"userInteractionCount":101},"InteractionCounter",{"@type":100},"ViewAction",7,{"@type":103,"mainEntity":104},"FAQPage",[105,111,115],{"name":106,"@type":107,"acceptedAnswer":108},"What is resting voltage and how should it be measured?","Question",{"text":109,"@type":110},"Resting voltage is the battery voltage with no charger/solar and no loads connected, such as a fridge or camp lights. For an accurate reading, disconnect all chargers and loads and let the battery rest for at least a couple of hours.","Answer",{"name":112,"@type":107,"acceptedAnswer":113},"Why can a 12V battery voltage be higher while charging and lower under load?",{"text":114,"@type":110},"A 12V system can reach about 14.6V when charging and drop to around 10.5V when under load and fully discharged. Voltage changes because the battery conditions differ between charging and usage.",{"name":116,"@type":107,"acceptedAnswer":117},"How does state of charge estimation change when the battery is under load?",{"text":118,"@type":110},"When loads draw power, the battery voltage reads lower due to the battery being under load. The load amount, temperature, battery condition, and age all affect the value, making state-of-charge estimates during discharge often difficult and inaccurate.","https://schema.org",{"og:url":78,"og:type":121,"og:title":59,"og:site_name":91,"og:description":61},"article",{"robots":123,"canonical":78},"index,follow",{"doc_id":125,"site_id":56},568795,1792104522,{"code":4,"msg":5,"data":128},{"doc_id":125,"user_id":129,"nickname":88,"user_avatar":130,"doc_module":9,"category_id":50,"category_name":51,"doc_title":59,"doc_description":61,"doc_content":131,"file_id":132,"file_url":133,"file_type":134,"file_size":135,"view_count":101,"is_deleted":4,"is_public":9,"is_downloadable":9,"audit_status":9,"page_count":9,"language":136,"language_code":57,"site_id":56,"html_lang":57,"table_of_contents":137,"faqs":138,"seo_title":139,"seo_description":61,"update_tm":140,"read_time":4},2336475104957,"https://ap-avatar.wpscdn.com/avatar/22000c4c6bd8a5076e1?x-image-process=image/resize,m_fixed,w_180,h_180&k=1787554080175789136","| AGM DEEP CYCLE BATTERIES\u003Cbr>\u003Cbr>VOLTAGE &STATE OF CHARGE EXPLAINED |  |  |\n| --- | --- | --- |\n| 12V Battery Voltage\u003Cbr>A 12V system can be a little confusing – as the voltage can be as high as 14.6 volts when charging and as low as 10.5V when under load and fully discharged – if you’renew to 4WDing and camping this is important to know!\u003Cbr>RESTING VOLTAGE is the voltage of the battery with no charger (or solar) or loads like a fridge or camp lights connected to the battery. Ideally to test battery voltage, you would disconnect all chargers and loads and let it rest for at least a couple of hours to get an accurate reading.\u003Cbr>A 12V battery is not able to supply power all the way down to 0 volts – see the graph for an idea of battery charge level when at a certain voltage! | Adventure Kings AGM Battery Resting State Of Charge LEVEL RESTING\u003Cbr>VOLTAGE STATUS 100% 12.9+ GOOD1 (USE\u003Cbr>SOLAR) 75% 12.6 OK1 (USE\u003Cbr>SOLAR) 50% 12.3 CHARGE\u003Cbr>NOW1 25% 12 NEEDS\u003Cbr>COMPLETE\u003Cbr>CHARGE1 0% 11.8 NEEDS\u003Cbr>COMPLETE\u003Cbr>CHARGE1 |  |\n| ¹ REMEMBER, WHILE THIS GRAPH IMPLIES ‘CHARGE NOW’ SHOULD ONLY OCCUR WHEN BATTERY IS ALREADY DISCHARGED, IDEALLY YOUR SOLAR\u003Cbr>PANEL WOULD BE KEEPING STATE OF CHARGE UP AND NEVER REACHING THE LOWER STATE OF DISCHARGE IN THE FIRST PLACE. |  |  |\n| Adventure Kings AGM Battery State Of Charge (5A Load) LEVEL UNDER 5A OF LOAD VOLTAGE** STATUS 95%-100% 12.55 THIS ASSUMES A 5A LOAD DRAINING CONSTANTLY FROM 75% 12.42 THE BATTERY-FOR EXAMPLE A FRIDGE THAT IS COOLING 50% 12.1 DOWN AND THE COMPRESSOR CONSTANTLY RUNNING. 25% 11.8 THIS IS WITH NO SOLAR OR OTHER CHARGER CONNECTED 0% 10.5 (WHICH WOULD CHARGE THE BATTERY & RAISE VOLTAGE) |  | Voltage of batteries while being used\u003Cbr>When your fridge is pulling power from your battery, the battery voltage will be reading lower, as the battery is under load. The amount of load on the battery, the temperature, the condition and age of the battery will all affect this value so it’s harder to gauge. |\n| ** THE ABOVE IS BASED ON A CONSTANT 5A LOAD–IF THE LOAD IS HIGHER THE BATTERY VOLTAGE WILL READ LOWER. TRYING TO JUDGE YOUR BATTERY’S STATE OF CHARGE WHILE IT’S BEING DISCHARGED (OR CHARGED) IS DIFFICULT AND OFTEN NOT ACCURATE!\u003Cbr>\u003Cbr>TOP TIP: IT'S ALWAYS A GREAT IDEA TO CHARGE YOUR BATTERY WHENEVER YOU'RE USING IT, BY CONNECTING YOUR PORTABLE SOLAR PANEL KIT |  |  |","cbCaibEY3cT6jOWi","https://ap.wps.com/l/cbCaibEY3cT6jOWi","pdf",459769,"English","# Resting Voltage and Why It Matters\n## 12V Voltage Ranges (Charging, Load, Discharged)\n# State of Charge Thresholds\n## Voltage Levels and Estimated Battery Percentage\n# Voltage Under Load and Measurement Tips\n## Constant 5A Load Example\n## Top Tip: Charge While Using","[{\"question\":\"What is resting voltage and how should it be measured?\",\"answer\":\"Resting voltage is the battery voltage with no charger/solar and no loads connected, such as a fridge or camp lights. For an accurate reading, disconnect all chargers and loads and let the battery rest for at least a couple of hours.\"},{\"question\":\"Why can a 12V battery voltage be higher while charging and lower under load?\",\"answer\":\"A 12V system can reach about 14.6V when charging and drop to around 10.5V when under load and fully discharged. Voltage changes because the battery conditions differ between charging and usage.\"},{\"question\":\"How does state of charge estimation change when the battery is under load?\",\"answer\":\"When loads draw power, the battery voltage reads lower due to the battery being under load. The load amount, temperature, battery condition, and age all affect the value, making state-of-charge estimates during discharge often difficult and inaccurate.\"}]","AGM Deep Cycle Batteries - Voltage & State of Charge Explained | PDF",1791872393]