{"id":25870,"date":"2025-05-06T11:03:59","date_gmt":"2025-05-06T09:03:59","guid":{"rendered":"https:\/\/monraspberry.com\/?post_type=product&#038;p=25870"},"modified":"2026-10-26T05:07:38","modified_gmt":"2026-10-26T04:07:38","slug":"pijuice-hat-for-raspberry-pi","status":"publish","type":"product","link":"https:\/\/monraspberry.com\/en\/produit\/pijuice-hat-pour-raspberry-pi\/","title":{"rendered":"PiJuice HAT for Raspberry Pi"},"content":{"rendered":"<h2>PiJuice HAT: the PiJuice battery UPS that makes your Raspberry Pi self-powered<\/h2>\n<p>The <strong>PiJuice HAT<\/strong> is a HAT-format power board that adds to your Raspberry Pi a <strong>1,820 mAh Li-Ion battery<\/strong>a <strong>power management microcontroller<\/strong> and a <strong>real-time clock (RTC)<\/strong> with wake-up alarm. If mains power fails, it takes over and allows a clean shutdown; it can also turn the board back on at a set time or when power returns. It is the accessory for mobile and solar projects, or installations far from a power outlet.<\/p>\n<h2>Highlights<\/h2>\n<ul>\n<li><strong>UPS function<\/strong> : automatic switchover to battery if the power supply drops out.<\/li>\n<li><strong>RTC with scheduled wake-up<\/strong> : schedule start-ups for periodic readings, time-lapse or remote stations.<\/li>\n<li><strong>Smart wake-up<\/strong> when power returns or when the battery reaches a chosen charge level.<\/li>\n<li><strong>Versatile charging<\/strong> : micro-USB, or J4 input from 4.2 to 10 V usable with the official PiJuice solar panels.<\/li>\n<li><strong>Open source software and API<\/strong> : configuration interface and Python library to read the charge level, control the LEDs and buttons, and program alarms.<\/li>\n<li><strong>External battery possible<\/strong> via the screw terminal (single-cell Li-Po, with NTC thermistor recommended).<\/li>\n<\/ul>\n<h2>Technical specifications<\/h2>\n<div class=\"mr-scroll\">\n<table>\n<thead>\n<tr>\n<th>Features<\/th>\n<th>Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Battery included<\/td>\n<td>Li-Ion BP7X, 1,820 mAh<\/td>\n<\/tr>\n<tr>\n<td>5 V output on the GPIO<\/td>\n<td>up to 2.5 A continuous, with a battery of at least 3,500 mAh (about 1.1 A measured by the manufacturer with the BP7X)<\/td>\n<\/tr>\n<tr>\n<td>Micro-USB charging<\/td>\n<td>adjustable current limit 1.5 A or 2.5 A<\/td>\n<\/tr>\n<tr>\n<td>J4 input<\/td>\n<td>4.2 to 10 V (solar: official panels only)<\/td>\n<\/tr>\n<tr>\n<td>Charging via the GPIO<\/td>\n<td>1.5 A maximum<\/td>\n<\/tr>\n<tr>\n<td>Microcontroller<\/td>\n<td>STM32F030 (Arm Cortex-M0)<\/td>\n<\/tr>\n<tr>\n<td>Charging circuit<\/td>\n<td>TI BQ24160, up to 2.5 A<\/td>\n<\/tr>\n<tr>\n<td>Clock<\/td>\n<td>RTC with wake-up alarm<\/td>\n<\/tr>\n<tr>\n<td>Format<\/td>\n<td>40-pin HAT<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>Compatibility: which Raspberry Pi models?<\/h2>\n<p>The official PiJuice hardware documentation covers the <strong>Raspberry Pi 3 (B and B+)<\/strong> and <strong>Raspberry Pi Zero<\/strong>. These are the boards we recommend it for.<\/p>\n<ul>\n<li><strong>Raspberry Pi 4<\/strong> : not listed in the official documentation. More importantly, with the original battery, the 5 V output peaks at around 1.1 A, which is not enough for a Pi 4 under load (it requires a 3 A power supply). We do not recommend it for this use.<\/li>\n<li><strong>Raspberry Pi 5<\/strong> : not documented, do not use it with the PiJuice HAT.<\/li>\n<li><strong>Battery life<\/strong> : it depends entirely on the power consumption of the board and peripherals; measure your setup rather than relying on a theoretical runtime.<\/li>\n<\/ul>\n<h2>What else you need<\/h2>\n<ul>\n<li><a href=\"https:\/\/monraspberry.com\/en\/product\/raspberry-pi-3-model-b\/\">The Raspberry Pi 3 Model B+<\/a> : an officially supported board, power-efficient and well suited to battery operation.<\/li>\n<li><a href=\"https:\/\/monraspberry.com\/en\/product\/raspberry-pi-zero-w\/\">The Raspberry Pi Zero W<\/a> : very low power consumption, to maximize battery life.<\/li>\n<li><a href=\"https:\/\/monraspberry.com\/en\/product\/alimentation-raspberry-pi-officielle-micro-usb-125w\/\">The official 12.5 W micro-USB power supply<\/a> : 5.1 V 2.5 A, perfect for the PiJuice micro-USB input set to 2.5 A.<\/li>\n<li>A SanDisk High Endurance microSD for data loggers that write continuously.<\/li>\n<\/ul>\n<h2>Uses and projects<\/h2>\n<ul>\n<li><strong>Autonomous weather station<\/strong> powered by a solar panel, woken by the RTC for each reading: see <a href=\"https:\/\/monraspberry.com\/en\/creating-a-weather-station-with-a-raspberry-pi\/\">our weather station guide<\/a>.<\/li>\n<li><strong>Long-term time-lapse<\/strong> with scheduled shutdown and restart: <a href=\"https:\/\/monraspberry.com\/en\/realiser-un-time-lapse-avec-la-camera-du-raspberry-pi\/\">make a time-lapse with the Raspberry Pi camera<\/a>.<\/li>\n<li><strong>Passerelle IoT<\/strong> that survives brief power cuts and shuts down cleanly.<\/li>\n<li><strong>Robot or portable device<\/strong> without a power cable.<\/li>\n<\/ul>\n<p>Discover other add-ons in the HATs for Raspberry Pi 3.<\/p>\n<h2>Frequently asked questions<\/h2>\n<h3>Does the PiJuice HAT work with the Raspberry Pi 4?<\/h3>\n<p>It is not listed in the official documentation, and the included battery only delivers about 1.1 A at 5 V, too little for a loaded Pi 4. We recommend it for the Raspberry Pi 3 and Zero.<\/p>\n<h3>And with the Raspberry Pi 5?<\/h3>\n<p>No, the Raspberry Pi 5 is not supported by the PiJuice documentation.<\/p>\n<h3>Can it be recharged with a solar panel?<\/h3>\n<p>Yes, via the J4 input (4.2 to 10 V) or the micro-USB. The manufacturer only supports its official solar panels on the J4 input.<\/p>\n<h3>What is the difference between PiJuice HAT and PiJuice Zero?<\/h3>\n<p>The PiJuice Zero is a compact version in Zero format, with a J2 connector for an external Li-Po battery. The HAT carries the BP7X battery and a screw terminal for a larger battery.<\/p>\n<h3>Can I stack another HAT?<\/h3>\n<p>Yes, the PiJuice passes through the GPIO pins, but check that no pin used by the PiJuice (I2C in particular) conflicts.<\/p>\n<p><strong>Order with confidence:<\/strong> official, tested products, stock based in France, shipping within 24\/48 h after receipt of payment, free pickup point delivery on orders from \u20ac200, returns within 14 days (with return authorization) and payment by Visa, Mastercard, PayPal, Apple Pay or Google Pay.<\/p>","protected":false},"excerpt":{"rendered":"<ul>\n<li data-start=\"1483\" data-end=\"1518\"><strong data-start=\"1483\" data-end=\"1508\">UPS 5 V \/ 2.5 A + RTC<\/strong> integrated<\/li>\n<li data-start=\"1521\" data-end=\"1556\"><strong data-start=\"1521\" data-end=\"1554\">1,820 mAh expandable battery<\/strong><\/li>\n<li data-start=\"1559\" data-end=\"1586\"><strong data-start=\"1559\" data-end=\"1586\">Pi 4\/3\/Zero &amp; HAT stackable<\/strong><\/li>\n<\/ul>","protected":false},"featured_media":25871,"template":"","meta":[],"product_brand":[408],"product_cat":[24,29,34],"product_tag":[],"class_list":["post-25870","product","type-product","status-publish","has-post-thumbnail","product_brand-pijuice","product_cat-hats-raspberry-pi-4","product_cat-hats-raspberry-pi-3-pi-2","product_cat-hats-raspberry-pi-zero","first","outofstock","taxable","shipping-taxable","purchasable","product-type-simple","add-to-wishlist-after_add_to_cart"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product\/25870","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product\/25870\/revisions"}],"predecessor-version":[{"id":33597,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product\/25870\/revisions\/33597"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/media\/25871"}],"wp:attachment":[{"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/media?parent=25870"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product_brand?post=25870"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product_cat?post=25870"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product_tag?post=25870"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}