{"id":308,"date":"2026-10-17T05:30:32","date_gmt":"2026-10-17T05:30:32","guid":{"rendered":"https:\/\/chengguangenergy.com\/"},"modified":"2026-10-17T05:30:32","modified_gmt":"2026-10-17T05:30:32","slug":"jis-145g51","status":"publish","type":"post","link":"https:\/\/chengguangenergy.com\/ar\/jis-145g51\/","title":{"rendered":"145G51 Battery (N150): Heavy-Duty Truck &#038; Bus Battery Specs"},"content":{"rendered":"<blockquote>\n<p>Part of the <strong><a href=\"\/jis-battery-standard\/\">JIS Battery Standard<\/a><\/strong> guide.<\/p>\n<\/blockquote>\n<p>The 145G51 (N150) is a commercial-grade heavy-duty JIS battery for medium-duty trucks, large buses, construction equipment, and marine applications. Thick positive plates (3.0+ mm), lead-antimony grids, and a deep-sump design deliver vibration resistance and sustained high-current capability that passenger-car batteries cannot match.<\/p>\n<h2>Key Takeaways<\/h2>\n<ul>\n<li><strong>Specs<\/strong> \u2014 Heavy-duty: 120\u2013135 Ah, 800\u2013900 CCA, thick Pb-Sb plates, 508 \u00d7 222 mm, 30\u201338 kg.<\/li>\n<li><strong>Fitment<\/strong> \u2014 Medium trucks (Isuzu F-Series, Hino 300\/500, Fuso Canter), buses, construction equipment \u2014 not passenger cars.<\/li>\n<li><strong>24 V<\/strong> \u2014 Run two in series; T1 large posts and B00 hold-down.<\/li>\n<li><strong>Build<\/strong> \u2014 Pb-Sb thick grids (3.0\u20133.5 mm), deep-sump reservoir, double-sealed cover, 800\u20131,200 units\/day.<\/li>\n<\/ul>\n<h2>Quick Reference<\/h2>\n<table>\n<thead>\n<tr>\n<th>Parameter<\/th>\n<th>Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Model<\/td>\n<td>145G51<\/td>\n<\/tr>\n<tr>\n<td>Also Known As<\/td>\n<td>N150<\/td>\n<\/tr>\n<tr>\n<td>Standard<\/td>\n<td>JIS<\/td>\n<\/tr>\n<tr>\n<td>Battery Type<\/td>\n<td>Heavy Duty<\/td>\n<\/tr>\n<tr>\n<td>Nominal Voltage<\/td>\n<td>12 V<\/td>\n<\/tr>\n<tr>\n<td>Capacity (C20)<\/td>\n<td>120\u2013135 Ah<\/td>\n<\/tr>\n<tr>\n<td>CCA Rating<\/td>\n<td>800\u2013900 A (SAE)<\/td>\n<\/tr>\n<tr>\n<td>Dimensions (L\u00d7W\u00d7H)<\/td>\n<td>508 \u00d7 222 \u00d7 212\u2013240 mm<\/td>\n<\/tr>\n<tr>\n<td>Terminal Type<\/td>\n<td>T1 large post<\/td>\n<\/tr>\n<tr>\n<td>Polarity<\/td>\n<td>Left (\u2212), Right (+) \u2014 JIS type [0]<\/td>\n<\/tr>\n<tr>\n<td>Hold-Down<\/td>\n<td>B00 (top frame)<\/td>\n<\/tr>\n<tr>\n<td>Approximate Weight<\/td>\n<td>30\u201338 kg<\/td>\n<\/tr>\n<tr>\n<td>Chengguang SKU<\/td>\n<td>CG-JIS-145G51<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote>\n<p><strong>Specification ranges:<\/strong> values are typical production ranges. Exact CCA and Ah vary by batch \u2014 request the technical data sheet for your order.<\/p>\n<\/blockquote>\n<h2>Case &amp; Terminal Identification<\/h2>\n<p>A massive case (508 \u00d7 222 mm) with T1 large-post terminals (\u220519.5 mm positive, \u220517.9 mm negative). The label reads <strong>145G51<\/strong> or <strong>N150<\/strong>. The weight alone \u2014 30\u201338 kg, roughly double a passenger-car battery \u2014 is the most obvious identifier.<\/p>\n<table>\n<thead>\n<tr>\n<th>Identifier<\/th>\n<th>Value<\/th>\n<th>Check<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Case length<\/td>\n<td>508 mm<\/td>\n<td>Heavy-duty frame (G-series)<\/td>\n<\/tr>\n<tr>\n<td>Case width<\/td>\n<td>222 mm<\/td>\n<td>Wide heavy-duty case<\/td>\n<\/tr>\n<tr>\n<td>Terminal<\/td>\n<td>T1 large post<\/td>\n<td>Large-diameter post<\/td>\n<\/tr>\n<tr>\n<td>Weight<\/td>\n<td>30\u201338 kg<\/td>\n<td>Double a car battery<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Vehicle Applications<\/h2>\n<p>Medium-duty trucks (4\u20138 L diesel), large buses, construction machinery, generators, and marine starting. <strong>Not<\/strong> for passenger vehicles.<\/p>\n<table>\n<thead>\n<tr>\n<th>Category<\/th>\n<th>Compatible Equipment<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Isuzu<\/td>\n<td>F-Series, Forward<\/td>\n<\/tr>\n<tr>\n<td>Hino<\/td>\n<td>300, 500 Series<\/td>\n<\/tr>\n<tr>\n<td>Fuso<\/td>\n<td>Canter, Fighter<\/td>\n<\/tr>\n<tr>\n<td>UD Trucks<\/td>\n<td>Croner, Quester<\/td>\n<\/tr>\n<tr>\n<td>Construction<\/td>\n<td>Excavators, wheel loaders, bulldozers<\/td>\n<\/tr>\n<tr>\n<td>Marine<\/td>\n<td>Diesel inboard engines, commercial vessels<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Fitment is a market-based guide \u2014 verify tray dimensions, terminal position, and hold-down before ordering. For 24 V systems, run two 145G51 batteries in series.<\/p>\n<h2>Regional Markets<\/h2>\n<table>\n<thead>\n<tr>\n<th>Region<\/th>\n<th>Demand<\/th>\n<th>Segment<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Africa<\/td>\n<td>Major<\/td>\n<td>Commercial vehicle aftermarket<\/td>\n<\/tr>\n<tr>\n<td>Middle East<\/td>\n<td>Strong<\/td>\n<td>Trucks and buses<\/td>\n<\/tr>\n<tr>\n<td>Southeast Asia<\/td>\n<td>Strong<\/td>\n<td>Commercial fleet<\/td>\n<\/tr>\n<tr>\n<td>Latin America<\/td>\n<td>Moderate<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Manufacturing &amp; Grid Alloy<\/h2>\n<p>The 145G51 runs on Chengguang&#8217;s dedicated heavy-duty line in <strong>Jinzhou, Hebei, China<\/strong>:<\/p>\n<ul>\n<li><strong>Grid alloy<\/strong> \u2014 lead-antimony (Pb-Sb) thick grids (3.0\u20133.5 mm) for structural integrity under vibration.<\/li>\n<li><strong>Deep-sump design<\/strong> \u2014 extra electrolyte reservoir below the plates for extended service intervals.<\/li>\n<li><strong>Cover<\/strong> \u2014 double-sealed with labyrinth venting.<\/li>\n<li><strong>Welds<\/strong> \u2014 reinforced COS straps and intercell welds for sustained high current.<\/li>\n<li><strong>Throughput<\/strong> \u2014 800\u20131,200 units\/day.<\/li>\n<\/ul>\n<blockquote>\n<p>Note: Pb-Sb grids consume some water \u2014 periodic electrolyte level checks are part of normal heavy-duty maintenance, unlike the maintenance-free Ca-Ca passenger range.<\/p>\n<\/blockquote>\n<h2>Testing &amp; Quality Control<\/h2>\n<table>\n<thead>\n<tr>\n<th>Test<\/th>\n<th>Standard<\/th>\n<th>Pass Criteria<\/th>\n<th>Coverage<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>CCA Cold Cranking<\/td>\n<td>SAE J537 at \u221218 \u00b0C<\/td>\n<td>&gt;800 A<\/td>\n<td>100%<\/td>\n<\/tr>\n<tr>\n<td>Open Circuit Voltage<\/td>\n<td>\u2014<\/td>\n<td>&gt;12.60 V after formation<\/td>\n<td>100%<\/td>\n<\/tr>\n<tr>\n<td>High-Rate Discharge<\/td>\n<td>30-second test<\/td>\n<td>Voltage stability<\/td>\n<td>100%<\/td>\n<\/tr>\n<tr>\n<td>Visual Inspection<\/td>\n<td>\u2014<\/td>\n<td>Case, terminals, label, polarity<\/td>\n<td>100%<\/td>\n<\/tr>\n<tr>\n<td>C20 Capacity<\/td>\n<td>IEC 60095-1<\/td>\n<td>\u226595% of rated Ah<\/td>\n<td>Batch<\/td>\n<\/tr>\n<tr>\n<td>Reserve Capacity<\/td>\n<td>SAE J537<\/td>\n<td>200\u2013250 min typical<\/td>\n<td>Batch<\/td>\n<\/tr>\n<tr>\n<td>Severe Vibration<\/td>\n<td>SAE J537<\/td>\n<td>5g RMS, 8 hours<\/td>\n<td>Batch<\/td>\n<\/tr>\n<tr>\n<td>Thermal Cycling<\/td>\n<td>\u221240 \u00b0C to +70 \u00b0C<\/td>\n<td>No leakage, CCA retention<\/td>\n<td>Batch<\/td>\n<\/tr>\n<tr>\n<td>Deep-Cycle Endurance<\/td>\n<td>\u2014<\/td>\n<td>80% DoD<\/td>\n<td>Batch<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Charging &amp; Service Life<\/h2>\n<ul>\n<li><strong>Charge voltage<\/strong> \u2014 flooded Pb-Sb absorption 14.4\u201315.0 V; equalize periodically if specific-gravity spread exceeds 0.030.<\/li>\n<li><strong>Service life<\/strong> \u2014 2\u20134 years in commercial service; vibration and deep cycling are the primary wear factors.<\/li>\n<\/ul>\n<h2>Sizing Check \u2014 Worked Example<\/h2>\n<p>A medium truck needs 24 V and high reserve for overnight loads:<\/p>\n<ol>\n<li><strong>24 V series.<\/strong> Two 145G51 units in series give 24 V at 120\u2013135 Ah and 800\u2013900 CCA \u2014 the standard medium-truck configuration. Use identical age\/spec batteries and replace both together.<\/li>\n<li><strong>Reserve capacity.<\/strong> At 200\u2013250 min RC (25 A to 10.5 V), a 145G51 supports a 25 A overnight load (reefer + telematics + lighting) for 3.3\u20134.2 hours before hitting 10.5 V \u2014 budget two units in parallel (or step to the 190H52) for a 10-hour stand.<\/li>\n<\/ol>\n<h2>Cross-Reference<\/h2>\n<table>\n<thead>\n<tr>\n<th>Model<\/th>\n<th>Standard<\/th>\n<th>Relationship<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>N150<\/td>\n<td>JIS<\/td>\n<td>Alias \u2014 same case<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>N150 is the Middle East\/Africa designation for the 145G51.<\/p>\n<h2>Cross-Standard Equivalents<\/h2>\n<table>\n<thead>\n<tr>\n<th>Standard<\/th>\n<th>Model<\/th>\n<th>Confidence<\/th>\n<th>Note<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>DIN<\/td>\n<td>60038 (DIN100)<\/td>\n<td>Low<\/td>\n<td>Heavy-duty vs SLI \u2014 different class<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote>\n<p>Cross-standard matches are dimensional approximations only \u2014 electrical specs differ by standard and test method. Always verify tray dimensions, terminal type, and hold-down (B00 vs B13) before substituting.<\/p>\n<\/blockquote>\n<h2>OEM &amp; Private Label Availability<\/h2>\n<p>The 145G51 is available for <strong>OEM manufacturing<\/strong> under your brand from Chengguang Power Tech:<\/p>\n<ul>\n<li>Custom label, case color, terminal type, and retail packaging<\/li>\n<li>Full batch traceability \u2014 raw material lot to shipping container<\/li>\n<li>100% pre-shipment CCA and capacity testing with CoA<\/li>\n<li>DG-compliant export packaging (UN 2794 \/ Class 8)<\/li>\n<li>Technical data sheet, MSDS, and Certificate of Analysis per shipment<\/li>\n<\/ul>\n<p><a href=\"https:\/\/chengguangenergy.com\/contact\/\">Request OEM Quote<\/a> \u00b7 <a href=\"https:\/\/oem.chengguangenergy.com\/oem-process\/\" rel=\"nofollow\">View OEM Process<\/a><\/p>\n<h2>Frequently Asked Questions<\/h2>\n<p><strong>Can I use a 145G51 in a car?<\/strong> No \u2014 the 508 \u00d7 222 mm case and 30\u201338 kg weight are for trucks and buses. A passenger tray will not accept it.<\/p>\n<p><strong>How do I run 24 V?<\/strong> Two identical 145G51 units in series; replace both together, never one at a time.<\/p>\n<p><strong>145G51 vs 190H52?<\/strong> The 145G51 suits medium trucks and buses (4\u20138 L diesel); the 190H52 is larger (521 \u00d7 278 mm, 200 Ah \/ 1,100 CCA) for heavy trucks and equipment (&gt;8 L diesel).<\/p>\n<p><strong>What is the service life?<\/strong> 2\u20134 years in commercial service. Vibration and deep cycling are primary wear factors; regular electrolyte checks extend life (Pb-Sb grids consume some water).<\/p>\n<h2>Related Models<\/h2>\n<ul>\n<li><a href=\"\/jis-190h52\/\">190H52 Battery<\/a> \u2014 larger (521 \u00d7 278 mm), 200 Ah. For heavy trucks and equipment.<\/li>\n<li><a href=\"\/jis-105d31\/\">105D31 Battery<\/a> \u2014 passenger battery (306 mm, 90 Ah). Not a replacement.<\/li>\n<li><a href=\"https:\/\/data.chengguangenergy.com\/battery-models\/jis\/145g51\/\" rel=\"nofollow\">145G51 \u2014 Full Specification<\/a><\/li>\n<li><a href=\"\/jis-battery-standard\/\">JIS Battery Standard Guide<\/a><\/li>\n<li><a href=\"https:\/\/chengguangenergy.com\/contact\/\">Request OEM Quote<\/a><\/li>\n<\/ul>\n<h2>Author &amp; Factory Credentials<\/h2>\n<p>Authored by the <strong>Chengguang Engineering Team<\/strong> \u2014 application and process engineers at Chengguang Power Tech, an automotive battery manufacturer in Jinzhou, Hebei, China. Content is reviewed by the <strong>IATF 16949 Quality Department<\/strong> against production data and third-party test reports before publication.<\/p>\n<p><strong>Factory certifications:<\/strong> IATF 16949 (automotive quality) \u00b7 ISO 9001 (quality management) \u00b7 ISO 45001 (occupational safety) \u00b7 CE marking (EU compliance).<\/p>\n<p>Full test reports and the Certificate of Analysis (CoA) are published on the <a href=\"https:\/\/data.chengguangenergy.com\/battery-models\/\" rel=\"nofollow\">Battery Database<\/a> and ship with every order.<\/p>\n<h2>Sources &amp; Verification<\/h2>\n<p>Specifications on this page are sourced from Chengguang Power Tech factory technical documentation and tested to JIS D 5301, DIN EN 50342-1, SAE J537, and IEC 60095-1. Contact Chengguang for the exact data sheet. Every batch ships with a Certificate of Analysis (CoA).<\/p>\n<p><em>Author: Chengguang Engineering Team \u00b7 Reviewed: IATF 16949 Quality Department \u00b7 Last updated: 2026-08-19<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>145G51 (N150) heavy-duty battery \u2014 120\u2013135 Ah, 800\u2013900 CCA. Specs, 508\u00d7222 mm dimensions, truck\/bus fitment, Pb-Sb construction, QC gates, and cross-reference.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":"","_llm_markdown_disabled":false},"categories":[126],"tags":[],"class_list":["post-308","post","type-post","status-publish","format-standard","hentry","category-battery-market-standards"],"_links":{"self":[{"href":"https:\/\/chengguangenergy.com\/ar\/wp-json\/wp\/v2\/posts\/308","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chengguangenergy.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chengguangenergy.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chengguangenergy.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chengguangenergy.com\/ar\/wp-json\/wp\/v2\/comments?post=308"}],"version-history":[{"count":1,"href":"https:\/\/chengguangenergy.com\/ar\/wp-json\/wp\/v2\/posts\/308\/revisions"}],"predecessor-version":[{"id":811,"href":"https:\/\/chengguangenergy.com\/ar\/wp-json\/wp\/v2\/posts\/308\/revisions\/811"}],"wp:attachment":[{"href":"https:\/\/chengguangenergy.com\/ar\/wp-json\/wp\/v2\/media?parent=308"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chengguangenergy.com\/ar\/wp-json\/wp\/v2\/categories?post=308"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chengguangenergy.com\/ar\/wp-json\/wp\/v2\/tags?post=308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}