{"id":19241,"date":"2026-10-17T11:11:52","date_gmt":"2026-10-17T03:11:52","guid":{"rendered":"https:\/\/www.wehopower.com\/news\/weho-b2b-54-off-grid-solar-inverter-and-battery-bank-matching\/"},"modified":"2026-10-17T11:11:52","modified_gmt":"2026-10-17T03:11:52","slug":"weho-b2b-54-off-grid-solar-inverter-and-battery-bank-matching","status":"publish","type":"news","link":"https:\/\/www.wehopower.com\/ru\/news\/weho-b2b-54-off-grid-solar-inverter-and-battery-bank-matching\/","title":{"rendered":"Off-Grid Inverter and Battery Matching: A B2B Load and Daily-Energy Specification"},"content":{"rendered":"<article>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u041e\u0433\u043b\u0430\u0432\u043b\u0435\u043d\u0438\u0435<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u041f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u044c<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.wehopower.com\/ru\/news\/weho-b2b-54-off-grid-solar-inverter-and-battery-bank-matching\/#Off-Grid_Inverter_and_Battery_Matching_A_B2B_Load_and_Daily-Energy_Specification\" >Off-Grid Inverter and Battery Matching: A B2B Load and Daily-Energy Specification<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.wehopower.com\/ru\/news\/weho-b2b-54-off-grid-solar-inverter-and-battery-bank-matching\/#Separate_the_functions_in_the_purchased_system\" >Separate the functions in the purchased system<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.wehopower.com\/ru\/news\/weho-b2b-54-off-grid-solar-inverter-and-battery-bank-matching\/#Ask_for_a_load_schedule_not_only_a_total_wattage\" >Ask for a load schedule, not only a total wattage<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.wehopower.com\/ru\/news\/weho-b2b-54-off-grid-solar-inverter-and-battery-bank-matching\/#Calculate_daily_energy_with_declared_assumptions\" >Calculate daily energy with declared assumptions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.wehopower.com\/ru\/news\/weho-b2b-54-off-grid-solar-inverter-and-battery-bank-matching\/#Check_the_battery_voltage_at_the_inverter_terminals\" >Check the battery voltage at the inverter terminals<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.wehopower.com\/ru\/news\/weho-b2b-54-off-grid-solar-inverter-and-battery-bank-matching\/#Qualify_the_complete_loadbattery_combination\" >Qualify the complete load\/battery combination<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.wehopower.com\/ru\/news\/weho-b2b-54-off-grid-solar-inverter-and-battery-bank-matching\/#Information_for_a_system-level_quotation\" >Information for a system-level quotation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.wehopower.com\/ru\/news\/weho-b2b-54-off-grid-solar-inverter-and-battery-bank-matching\/#Buyer_questions\" >Buyer questions<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.wehopower.com\/ru\/news\/weho-b2b-54-off-grid-solar-inverter-and-battery-bank-matching\/#Does_a_600_W_peak_rating_guarantee_motor_startup\" >Does a 600 W peak rating guarantee motor startup?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.wehopower.com\/ru\/news\/weho-b2b-54-off-grid-solar-inverter-and-battery-bank-matching\/#Can_photovoltaic_modules_connect_directly_to_this_inverter\" >Can photovoltaic modules connect directly to this inverter?<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"Off-Grid_Inverter_and_Battery_Matching_A_B2B_Load_and_Daily-Energy_Specification\"><\/span>Off-Grid Inverter and Battery Matching: A B2B Load and Daily-Energy Specification<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<figure data-image-role=\"application_b\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/02-application-b-83.png\" alt=\"Off-Grid Inverter and Battery Matching: A B2B Load and Daily-Energy Specification  title=\" width=\"1536\" height=\"1024\" off-grid inverter and battery matching: b2b load daily-energy specification title=\"\"><figcaption>A separate farm-telemetry compartment illustrates the AC auxiliary interface; battery limits, waveform acceptance and daily-energy requirements need system qualification.<\/figcaption><\/figure>\n<p>For an off-grid equipment package, match the inverter to both the AC load schedule and the battery system&#8217;s usable energy, voltage window and discharge capability. A watt rating is an instantaneous power limit; it does not tell an OEM how long the equipment can run or how much solar generation is needed to recover the consumed energy.<\/p>\n<p>The photographed WHM-300-C is a 12 V modified-sine inverter. Its matched C-series sheet lists 300 W rated power and 600 W peak power, without a peak-duration curve. Treat those figures as starting information for qualification, not a guarantee that any 300 W appliance or motor will operate correctly.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Separate_the_functions_in_the_purchased_system\"><\/span>Separate the functions in the purchased system<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A battery-fed inverter converts DC energy to AC for the connected loads. The photovoltaic array, charge controller and battery perform different jobs. The WHM-300-C evidence used here does not identify a solar charge-controller function, battery charger, grid-export function or automatic transfer arrangement. Specify those functions as separate parts of the system rather than assuming they are included in the inverter enclosure.<\/p>\n<p>\u0410 <a href=\"https:\/\/www.energy.gov\/cmei\/systems\/solar-photovoltaic-system-design-basics\" target=\"_blank\" rel=\"noopener\">US Department of Energy&#8217;s PV system overview<\/a> explains the distinct roles of generation, conversion and storage. That general overview is not a certification or performance report for this WHM sample.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ask_for_a_load_schedule_not_only_a_total_wattage\"><\/span>Ask for a load schedule, not only a total wattage<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<thead>\n<tr>\n<th>Required load information<\/th>\n<th>Why procurement needs it<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>AC voltage, frequency and waveform acceptance<\/td>\n<td>The supplied output version and modified waveform must suit the receiver<\/td>\n<\/tr>\n<tr>\n<td>Simultaneous continuous power<\/td>\n<td>Separate the operating combination from a sum of unrelated nameplates<\/td>\n<\/tr>\n<tr>\n<td>Starting power, duration and restart sequence<\/td>\n<td>A peak watt figure without duration cannot establish startup compatibility<\/td>\n<\/tr>\n<tr>\n<td>Hours per day and standby periods<\/td>\n<td>These determine daily energy demand and idle-loss exposure<\/td>\n<\/tr>\n<tr>\n<td>Required autonomy and recovery time<\/td>\n<td>The battery and charging design must cover the specified operating period<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure data-image-role=\"product_detail\"><img decoding=\"async\" src=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/03-product-detail-82.png\" alt=\"Off-Grid Inverter and Battery Matching: A B2B Load and Daily-Energy Specification  title=\" width=\"1536\" height=\"1024\" off-grid inverter and battery matching: b2b load daily-energy specification title=\"\"><figcaption>Original product photographs retain their markings and casing. These views support the illustrated sample identity, not an application test.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Calculate_daily_energy_with_declared_assumptions\"><\/span>Calculate daily energy with declared assumptions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Suppose an auxiliary AC device consumes 60 W for four hours each day: its load energy is 240 Wh. If planning efficiency is assumed to be 85%, the inverter input energy for that load is approximately 282 Wh. Add applicable inverter idle energy, other DC loads, distribution losses and the battery&#8217;s permitted usable-energy limit. These are illustrative assumptions, not measured WHM efficiency or a battery-size recommendation.<\/p>\n<p>Separately estimate the solar energy that can actually reach the battery under the site&#8217;s irradiation, shading, temperature and charging limits. Do not compare a panel&#8217;s nameplate watts directly with daily load watt-hours. The system must also recover the chosen battery reserve under the specified seasonal conditions.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Check_the_battery_voltage_at_the_inverter_terminals\"><\/span>Check the battery voltage at the inverter terminals<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The matched 12 V C-series column lists a 10\u201315.5 V input range. Confirm the battery&#8217;s complete charge and discharge operating window, including charging peaks, protection behavior and voltage loss along the DC circuit. Nominal \u201c12 V\u201d is not the complete compatibility statement.<\/p>\n<p>Use the actual delivered input version; the same sheet also describes 24 V and 48 V variants with different windows. The original sample&#8217;s top strip says 12 V, so it must not be relabeled as a higher-voltage unit to fit an existing battery bank. Cable protection, fault interruption and earthing require the completed system design and applicable installation rules.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Qualify_the_complete_loadbattery_combination\"><\/span>Qualify the complete load\/battery combination<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Agree on a sample test covering the minimum available battery voltage, permitted maximum AC load, required starts, thermal conditions and autonomy target. Record the input voltage at the inverter, the battery protection state and the receiving equipment&#8217;s behavior. Check whether the actual receiver manufacturer permits a modified-sine source before approving the arrangement.<\/p>\n<p>For recurring OEM orders, bind the approved output voltage\/frequency, plug arrangement, input version and C-series mechanical revision to the purchase specification. The supplied C sheet lists a 162 \u00d7 106 \u00d7 63 mm WHM-300-C body; dimensions from a different WHM revision should not be used to approve the same equipment space.<\/p>\n<figure data-image-role=\"engineering_context\"><img decoding=\"async\" src=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/04-engineering-context-86.png\" alt=\"Off-Grid Inverter and Battery Matching: A B2B Load and Daily-Energy Specification  title=\" width=\"1536\" height=\"1024\" off-grid inverter and battery matching: b2b load daily-energy specification title=\"\"><figcaption>A source-grounded procurement checklist separates documented component facts from the completed equipment acceptance requirements.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Information_for_a_system-level_quotation\"><\/span>Information for a system-level quotation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Provide the battery chemistry and voltage limits, charging architecture, AC load list and waveform requirements, simultaneous power, daily duty, autonomy, enclosure conditions, target market and expected production quantities. Use the <a href=\"https:\/\/www.wehopower.com\/ru\/products\/\">WEHO product catalogue<\/a> to compare families and <a href=\"https:\/\/www.wehopower.com\/ru\/contact\/\">request a version-specific inverter review<\/a>. Confirm commercial terms and any project approval documents in the quotation.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Buyer_questions\"><\/span>Buyer questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Does_a_600_W_peak_rating_guarantee_motor_startup\"><\/span>Does a 600 W peak rating guarantee motor startup?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No. The supplied evidence does not establish peak duration or the particular motor&#8217;s starting demand. Both the inverter and battery\/distribution path need a defined test.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_photovoltaic_modules_connect_directly_to_this_inverter\"><\/span>Can photovoltaic modules connect directly to this inverter?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The source identifies a battery-voltage DC input, not a qualified photovoltaic input with charging or tracking functions. Specify the correct charging and storage architecture first.<\/p>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>Separate inverter power, battery voltage and usable energy, solar recovery and waveform compatibility in the purchased equipment package.<\/p>","protected":false},"author":2,"featured_media":19238,"parent":0,"menu_order":62,"comment_status":"","ping_status":"","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[149,284],"class_list":["post-19241","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_category-blog","news_category-product-articles","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/news\/19241","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/comments?post=19241"}],"version-history":[{"count":0,"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/news\/19241\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/media\/19238"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/media?parent=19241"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/ru\/wp-json\/wp\/v2\/news_category?post=19241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}