> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # DC-DC Charge Discharge Integrated Module (5V/2A) **Type:** Product page · **SKU:** DFR1026 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia) **Page:** https://core-electronics.com.au/dc-dc-charge-discharge-integrated-module-5v2a.html ([markdown](https://core-electronics.com.au/dc-dc-charge-discharge-integrated-module-5v2a.html.md)) This is 5V/2A charge-discharge integrated module with battery protection can boost 3.7V/4.2V lithium batteries to 5V.... ## Pricing - **Price:** $4.75 (inc GST) — $4.32 AUD, exc GST - **Quantity discounts:** 6+ $4.10 (exc GST) · 12+ $3.93 (exc GST) ## Availability & dispatch - In stock, ships same business day if ordered before 2PM (Australia/Sydney). - We can dispatch 4 today, and up to 500 more in 8–12 days. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=DFR1026:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/DFR1026:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description This two-in-one DC-DC charge and discharge module offers a max 2A load current and 5V output (Normally open). It features 4 levels of charge/discharge electricity indication and button-controlled output. The module comes with a built-in power management circuit that boosts a lithium battery to 5V and supports charging and discharging simultaneously. Besides, it has battery protection which makes it applicable for batteries without a protective board, This module can be applied to car charging retrofit, DIY mobile power bank, and mobile phone/laptop portable charging devices. Note: The KEY function is invalid in charging mode. In discharging mode, short press the button once to enable output, and the indicator turns on; Long press for about 10s to disable the output, and the indicator turns off this time. The indicator goes off after 35s when there is no operation in discharging mode. Ensure that the total output power is less than the total input power if you want to run your project indefinitely. **Pin Definition** ![DC-DC Charge Discharge Integrated Module(5V 2A)](https://core-electronics.com.au/attachments/localcontent/2_54867073795.jpg) **Wiring Instruction** Charge and discharge ![DC-DC Charge Discharge Integrated Module(5V 2A)](https://core-electronics.com.au/attachments/localcontent/3_2433432826d.jpg) Charge only ![DC-DC Charge Discharge Integrated Module(5V 2A)](https://core-electronics.com.au/attachments/localcontent/4_298618bba1a.jpg) Discharge only ![DC-DC Charge Discharge Integrated Module(5V 2A)](https://core-electronics.com.au/attachments/localcontent/5_3000271890c.jpg) **LED Indication** ![DC-DC Charge Discharge Integrated Module(5V 2A)](https://core-electronics.com.au/attachments/localcontent/6_851132f6261.jpg) ### Features - 4 levels of charge/discharge electricity indication - Button-controlled output - Built-in power management circuit ### Applications - Car charging retrofit - Driving recorder power supply - DIY mobile power bank - Mobile phone/laptop portable charging device ### Specification - Charge Voltage: DC 4.6V to 5.4V(Typical 5V) - Input Current: 2A-3A - Charge Current: 0-2.1A - Fully-charged Voltage: 4.2V±1% - Charging quiescent current: 100uA - Discharge Current: 0-3.5A - Discharge quiescent current: 50uA - Output Voltage: 5V (Always on, no low-current shutoff) - Output Current: 0-2.1A - Boost Efficiency: =92% - Charge Efficiency: =91% - Discharge Efficiency: =96% - Ambient Temperature: -20°C to +85°C - Pad Pitch: 2.54mm - Pad Hole Diameter: 1mm - Dimension: 25\*16mm/0.98\*0.63” - Lithium Battery Protection: over-current, over-voltage, over-temperature, short circuit protections ### Parts List - DC-DC Charge Discharge Integrated Module(5V/2A) x1 ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/D/F/DFR1026-1.jpg)