{"id":3151,"date":"2015-07-10T04:14:17","date_gmt":"2015-07-10T04:14:17","guid":{"rendered":"https:\/\/www.mppsolar.com\/v3\/?p=3151"},"modified":"2016-04-19T09:17:35","modified_gmt":"2016-04-19T09:17:35","slug":"solar-charger-selection-guide","status":"publish","type":"post","link":"https:\/\/www.mppsolar.com\/v3\/solar-charger-selection-guide\/","title":{"rendered":"Solar Charger Selection Guide"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3177\" src=\"https:\/\/www.mppsolar.com\/v3\/wp-content\/uploads\/2015\/07\/post2.jpg\" alt=\"post2\" width=\"750\" height=\"80\" srcset=\"https:\/\/www.mppsolar.com\/v3\/wp-content\/uploads\/2015\/07\/post2.jpg 750w, https:\/\/www.mppsolar.com\/v3\/wp-content\/uploads\/2015\/07\/post2-600x64.jpg 600w, https:\/\/www.mppsolar.com\/v3\/wp-content\/uploads\/2015\/07\/post2-300x32.jpg 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p>This guide is prepared to help you choose a suitable Solar Charger amongst the various models we offer.\u00a0 There are two main types of solar chargers on the market: MPPT vs PWM type.\u00a0 Below is a summary of the MPPT type solar chargers which we offer and these are better in handling the wide variety of solar panel specifications.\u00a0 The most important considerations in selecting a suitable solar charger are to check:<\/p>\n<div class=\"shortcode-list shortcode-list-check\">\r\n<ul>\r\n\t<li><span style=\"color: #000080;\">that the model selected is suitable to handle the power of PV array, based on a particular system voltage<\/span><\/li>\r\n\t<li><span style=\"color: #000080;\">proposed array does not produce a voltage or current that exceeds the INPUT limits of the solar charger<\/span><\/li>\r\n<\/ul>\r\n<\/div>\n<p>&nbsp;<\/p>\n<p>*Please note the information listed below may be subject to change without notice, as we continuously find way to improve our products. Should you have any questions please feel free to <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/www.mppsolar.com\/v3\/contact-2\/\">contact us<\/a><\/span> for more information.<br \/>\n\n<table id=\"tablepress-2\" class=\"tablepress tablepress-id-2\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">PCM SERIES<\/th><th class=\"column-2\">2012, 3012<\/th><th class=\"column-3\">60X<\/th><th class=\"column-4\">5048, 8048<\/th><th class=\"column-5\">40CX, 80CX<\/th><th class=\"column-6\">50CV<\/th><th class=\"column-7\">924<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Algorithm<\/td><td class=\"column-2\">MPPT<\/td><td class=\"column-3\">MPPT<\/td><td class=\"column-4\">MPPT<\/td><td class=\"column-5\">MPPT<\/td><td class=\"column-6\">MPPT<\/td><td class=\"column-7\">MPPT<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Max Charging Current<\/td><td class=\"column-2\">20A, 25A<\/td><td class=\"column-3\">60A <\/td><td class=\"column-4\">50, 80A <\/td><td class=\"column-5\">40A, 80A <\/td><td class=\"column-6\">50A<\/td><td class=\"column-7\">9A <\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">System Voltage<\/td><td class=\"column-2\">12V<\/td><td class=\"column-3\">12V, 24V, 48V<\/td><td class=\"column-4\">12V, 24V, 36V, 48V<\/td><td class=\"column-5\">12V, 24V, 36V, 48V<\/td><td class=\"column-6\">48V, 72V, 96V, 120V<\/td><td class=\"column-7\">12V, 24V<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Max PV Power<\/td><td class=\"column-2\">200W, 300W<\/td><td class=\"column-3\">3KW<\/td><td class=\"column-4\">Up to 3.4KW, 5.4KW<\/td><td class=\"column-5\">Up to 2.7KW, 5.4KW<\/td><td class=\"column-6\">Up to 8KW<\/td><td class=\"column-7\">125W, 250W<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">Max PV Voc Input<\/td><td class=\"column-2\">50V<\/td><td class=\"column-3\">145V<\/td><td class=\"column-4\">140V<\/td><td class=\"column-5\">240V<\/td><td class=\"column-6\">480V<\/td><td class=\"column-7\">80V<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">Max PV Isc Input<\/td><td class=\"column-2\">13A, 18A<\/td><td class=\"column-3\">50A<\/td><td class=\"column-4\">40A, 70A<\/td><td class=\"column-5\">30A, 70A<\/td><td class=\"column-6\">40A<\/td><td class=\"column-7\">10.5A<\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">MPPT Range<\/td><td class=\"column-2\">15V - 37V<\/td><td class=\"column-3\">15V\/30V\/60V - 115V<\/td><td class=\"column-4\">16V\/32V\/48V\/64V - 112V<\/td><td class=\"column-5\">16V\/32V\/48V\/64V - 192V<\/td><td class=\"column-6\">64V\/96V\/128V\/160V - 384V<\/td><td class=\"column-7\">18V\/36V - 80V<\/td>\n<\/tr>\n<tr class=\"row-9\">\n\t<td class=\"column-1\">Programmable Charging\uff1f<\/td><td class=\"column-2\">Yes*<\/td><td class=\"column-3\">Yes<\/td><td class=\"column-4\">Yes<\/td><td class=\"column-5\">Yes<\/td><td class=\"column-6\">Yes<\/td><td class=\"column-7\">No<\/td>\n<\/tr>\n<tr class=\"row-10\">\n\t<td class=\"column-1\">Bulk\/Absorption Voltage @12V<\/td><td class=\"column-2\">14.3V<\/td><td class=\"column-3\">14.1V - 14.6V<\/td><td class=\"column-4\">14.1V - 14.6V<\/td><td class=\"column-5\">14.1V - 14.6V<\/td><td class=\"column-6\">14.1V - 14.6V<\/td><td class=\"column-7\">14.4V<\/td>\n<\/tr>\n<tr class=\"row-11\">\n\t<td class=\"column-1\">Float Voltage @12V<\/td><td class=\"column-2\">13.2V - 14.0V<\/td><td class=\"column-3\">13.5V<\/td><td class=\"column-4\">13.2V - 13.8V<\/td><td class=\"column-5\">13.2V - 13.8V<\/td><td class=\"column-6\">13.2V - 13.8V<\/td><td class=\"column-7\">13.65V<\/td>\n<\/tr>\n<tr class=\"row-12\">\n\t<td class=\"column-1\">Equalization Charge<\/td><td class=\"column-2\">No<\/td><td class=\"column-3\">Yes<\/td><td class=\"column-4\">Yes<\/td><td class=\"column-5\">Yes<\/td><td class=\"column-6\">Yes<\/td><td class=\"column-7\">No<\/td>\n<\/tr>\n<tr class=\"row-13\">\n\t<td class=\"column-1\">Battery<br \/>\nTemperature Compensation<\/td><td class=\"column-2\">No<\/td><td class=\"column-3\">Yes (optional)<\/td><td class=\"column-4\">Yes<\/td><td class=\"column-5\">Yes<\/td><td class=\"column-6\">Yes<\/td><td class=\"column-7\">No<\/td>\n<\/tr>\n<tr class=\"row-14\">\n\t<td class=\"column-1\">Monitoring<\/td><td class=\"column-2\">No<\/td><td class=\"column-3\">Yes<\/td><td class=\"column-4\">No<\/td><td class=\"column-5\">No<\/td><td class=\"column-6\">No<\/td><td class=\"column-7\">No<\/td>\n<\/tr>\n<tr class=\"row-15\">\n\t<td class=\"column-1\">Safety Certification<\/td><td class=\"column-2\">CE<\/td><td class=\"column-3\">CE<\/td><td class=\"column-4\">CE<\/td><td class=\"column-5\">CE<\/td><td class=\"column-6\">CE<\/td><td class=\"column-7\">CE<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-2 from cache --><\/p>\n<hr \/>\n<h4><strong>Common Terminology in Solar Charger Selection<br \/>\n<\/strong><\/h4>\n<p><strong>Algorithm.<\/strong>\u00a0 There are generally two main types of solar chargers based on their design algorithm: MPPT vs PWM.\u00a0\u00a0 PWM type is the traditional charger and will basically bypass input voltage from a solar panel directly to battery. As it does not have the capability to convert high voltage supplied by a panel, power will be lost. \u00a0 MPPT type chargers, on the other hand, is a newer technology and can convert high voltage from a panel to increased output current; as a result, little power is lost. \u00a0 The lower the voltage difference between panel voltage vs. battery voltage, the higher the conversion efficiency.<\/p>\n<p><strong>Maximum Charging Current.<\/strong>\u00a0 This is the primary attribute of a solar charger. \u00a0 Solar chargers are generally rated in current (Ampere) and reflect the maximum output or charging current it can provide to a battery bank.<\/p>\n<p><strong>System Voltage.<\/strong>\u00a0 System voltage refers to the nominal voltage of a battery system to which the charger can support charging.\u00a0 The most common system voltage in an off-grid system are: 12V, 24V and 48V.\u00a0 Our 50EX can support charging of ultra high voltage systems from 48V, 72V, 96V, and up to 120V systems.<\/p>\n<p><strong>Max PV Power.<\/strong>\u00a0 This refers to the maximum PV array power that the charger can support, based on its max charging current<span style=\"color: #666699;\"><em>.<\/em><\/span><\/p>\n<p><strong>Max PV Voc Input.<\/strong>\u00a0 Maximum input open circuit voltage from a panel or an array must not exceed this.\u00a0 Note in winter times the voltage will increase slightly so it is advised to leave a buffer.<\/p>\n<p><strong>Max PV Isc Input.<\/strong>\u00a0 Maximum input short circuit current from a panel or an array must not exceed this level.<\/p>\n<p><strong>MPPT Range.<\/strong>\u00a0 The effective maximum input voltage of a panel or an array under load, usually represented by Vmp, should fall within this range so that the MPPT technology can be most efficient in converting voltage.<\/p>\n<p><strong>Programmable Charging.<\/strong>\u00a0 Some models allow users to manually change the charging voltage settings, such as bulk\/absorption and float voltage, in order to accommodate different types of battery requirement.<\/p>\n<p><strong>Bulk\/Absorption Voltage.<\/strong>\u00a0 Bulk\/absorption voltage typically is the highest charging voltage in a standard 3-stage battery charging process, and this occurs at the initial stage of a charging process where battery is low.\u00a0 In the bulk\/absorption stage, charging voltage is kept high and charging current will also be relatively high.<br \/>\n<span style=\"color: #666699;\"> <em>*Please make sure this setting matches with the battery requirement recommendation from your battery supplier.<\/em><\/span><\/p>\n<p><strong>Float Voltage.<\/strong>\u00a0 Once battery is charged full, a charger will enter float stage by applying the float charging voltage to the battery.\u00a0 At this stage, voltage is kept constant equal to float setting, and only minimal current is applied to battery to keep it full.<br \/>\n<span style=\"color: #666699;\"> <em>*Please make sure this setting matches with the battery requirement recommendation from your battery supplier.<\/em><\/span><\/p>\n<p><strong>Equalization Charge.<\/strong>\u00a0 CAUTION: this function should only apply to flooded type or wet batteries which may require equalization charge periodically to avoid sulfation.\u00a0 In an equalization charge, a battery will be brought up to more than 60V and this may create problems with some inverters due to the high voltage.\u00a0 Please verify if your inverter can safely accommodate this level before equalization, or else it should be disconnected from battery before equalization.<br \/>\n<span style=\"color: #666699;\"> <em>*Please make sure this setting matches with the battery requirement recommendation from your battery supplier.<\/em><\/span><\/p>\n<p><strong>Battery Temperature Compensation.<\/strong>\u00a0 Battery compensation may be important in areas where battery experience an extreme fluctuation of ambient temperature, causing their charging chemistry to change.\u00a0 Battery temperature compensation (BTS) will increase charging voltage when temperature gets low, and decrease charging voltage when it becomes warm.\u00a0 The neutral reference point is generally 25 degree Celsius.\u00a0\u00a0 BTS function will enable by attaching a specific BTS wire to the outside of the battery.<\/p>\n<p><strong>Monitoring.<\/strong>\u00a0 Only our PCM4048\/6048 and 60X models come with bundled monitoring software.<\/p>\n<p><strong>Safety Certification.<\/strong>\u00a0 All our solar chargers are certified and properly tested for CE standards in Europe, which is also a common safety standard used in many parts of the world.\u00a0 This confirms our products&#8217; suitability and safety to use on a daily basis within the stated specification.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This guide is prepared to help you choose a suitable Solar Charger amongst the various models we offer.\u00a0 There are two main types of solar chargers on the market: MPPT vs PWM type.\u00a0 Below is a summary of the MPPT type solar chargers which we offer and these are better in handling the wide variety of solar panel specifications.\u00a0 The most important considerations in selecting a suitable solar charger are to check: &nbsp; *Please note the information listed below may be subject to change without notice, as we continuously find way to improve our products. Should you have any questions please feel free to contact us for more information. Common Terminology in Solar Charger Selection Algorithm.\u00a0 There are generally two main types of solar chargers based on their design algorithm: MPPT vs PWM.\u00a0\u00a0 PWM type is the traditional charger and will basically bypass input voltage from a solar panel directly to battery. As it does not have the capability to convert high voltage supplied by a panel, power will be lost. \u00a0 MPPT type chargers, on the other hand, is a newer technology and can convert high voltage from a panel to increased output current; as a result, little power is lost. \u00a0 The lower the voltage difference between panel voltage vs. battery voltage, the higher the conversion efficiency. Maximum Charging Current.\u00a0 This is the primary attribute of a solar charger. \u00a0 Solar chargers are generally rated in current (Ampere) and reflect the maximum output or charging current it can provide to a battery bank. System Voltage.\u00a0 System voltage refers to the nominal voltage of a battery system to which the charger can support charging.\u00a0 The most common system voltage in an off-grid system are: 12V, 24V and 48V.\u00a0 Our 50EX can support charging of ultra high voltage systems from 48V, 72V, 96V, and up to 120V systems. Max PV Power.\u00a0 This refers to the maximum PV array power that the charger can support, based on its max charging current. Max PV Voc Input.\u00a0 Maximum input open circuit voltage from a panel or an array must not exceed this.\u00a0 Note in winter times the voltage will increase slightly so it is advised to leave a buffer. Max PV Isc Input.\u00a0 Maximum input short circuit current from a panel or an array must not exceed this level. MPPT Range.\u00a0 The effective maximum input voltage of a panel or an array under load, usually represented by Vmp, should fall within this range so that the MPPT technology can be most efficient in converting voltage. Programmable Charging.\u00a0 Some models allow users to manually change the charging voltage settings, such as bulk\/absorption and float voltage, in order to accommodate different types of battery requirement. Bulk\/Absorption Voltage.\u00a0 Bulk\/absorption voltage typically is the highest charging voltage in a standard 3-stage battery charging process, and this occurs at the initial stage of a charging process where battery is low.\u00a0 In the bulk\/absorption stage, charging voltage is kept high and charging current will also be relatively high. *Please make sure this setting matches with the battery requirement recommendation from your battery supplier. Float Voltage.\u00a0 Once battery is charged full, a charger will enter float stage by applying the float charging voltage to the battery.\u00a0 At this stage, voltage is kept constant equal to float setting, and only minimal current is applied to battery to keep it full. *Please make sure this setting matches with the battery requirement recommendation from your battery supplier. Equalization Charge.\u00a0 CAUTION: this function should only apply to flooded type or wet batteries which may require equalization charge periodically to avoid sulfation.\u00a0 In an equalization charge, a battery will be brought up to more than 60V and this may create problems with some inverters due to the high voltage.\u00a0 Please verify if your inverter can safely accommodate this level before equalization, or else it should be disconnected from battery before equalization. *Please make sure this setting matches with the battery requirement recommendation from your battery supplier. Battery Temperature Compensation.\u00a0 Battery compensation may be important in areas where battery experience an extreme fluctuation of ambient temperature, causing their charging chemistry to change.\u00a0 Battery temperature compensation (BTS) will increase charging voltage when temperature gets low, and decrease charging voltage when it becomes warm.\u00a0 The neutral reference point is generally 25 degree Celsius.\u00a0\u00a0 BTS function will enable by attaching a specific BTS wire to the outside of the battery. Monitoring.\u00a0 Only our PCM4048\/6048 and 60X models come with bundled monitoring software. Safety Certification.\u00a0 All our solar chargers are certified and properly tested for CE standards in Europe, which is also a common safety standard used in many parts of the world.\u00a0 This confirms our products&#8217; suitability and safety to use on a daily basis within the stated specification.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[64],"tags":[],"class_list":["post-3151","post","type-post","status-publish","format-standard","hentry","category-reference"],"_links":{"self":[{"href":"https:\/\/www.mppsolar.com\/v3\/wp-json\/wp\/v2\/posts\/3151","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mppsolar.com\/v3\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mppsolar.com\/v3\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mppsolar.com\/v3\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mppsolar.com\/v3\/wp-json\/wp\/v2\/comments?post=3151"}],"version-history":[{"count":0,"href":"https:\/\/www.mppsolar.com\/v3\/wp-json\/wp\/v2\/posts\/3151\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.mppsolar.com\/v3\/wp-json\/wp\/v2\/media?parent=3151"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mppsolar.com\/v3\/wp-json\/wp\/v2\/categories?post=3151"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mppsolar.com\/v3\/wp-json\/wp\/v2\/tags?post=3151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}