Hart 20v Battery Pinout Diagram Upd 【Full HD】
According to detailed measurements and user guides from YouTube and GearHack , the pins serve the following functions:
This is the ground or negative terminal.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
When looking at the top of the battery, the terminals are arranged to mate with the tool. The most common layout, often seen on the Hart 4Ah battery , includes two main power terminals and several smaller communication terminals. [+ (B+)] [T/ID] [C1/C2] [- (B-)] Use code with caution. Pin Functions Hart 20v Battery Pinout Diagram
You cannot simply connect wires to the and [ - ] terminals to run high-drain custom projects without understanding the BMS behavior. Over-Discharge Protection
If T1 to T5 reads 0V, the battery’s internal protection (BMS) has shut off due to over-discharge or short circuit. A Hart charger can reset it.
Understanding the pinout of a is essential for DIY projects like powering custom lights or creating battery adapters. The Hart 20V system typically uses a 5-pin interface for standard operation, though additional internal contact points exist for balanced charging. Standard Terminal Identification According to detailed measurements and user guides from
Connects to an internal NTC thermistor. It monitors cell temperature during heavy discharge and high-speed charging to prevent overheating. Identification / Communication Pin (ID / C) Location: Center
Most Hart batteries use a slide-pack design similar to Ryobi One+ but in pin function.
Allows the tool or charger to identify the battery type and capacity. If you share with third parties, their policies apply
Some community reviews report issues with battery mounts being "out of spec" or packs failing prematurely compared to higher-end TTI brands.
By respecting the polarities of the and installing a low-voltage cutoff, these rugged packs can safely power everything from camping lights and soldering irons to custom robotics.
A control pin that works with the battery management system (BMS) to regulate power flow. B- (Negative Terminal): The main ground/negative power return. Internal Balance Contacts
Because Hart batteries are affordable and readily available, they make excellent portable power banks for custom electronics, such as 12V-24V camping lights, DIY robotics, power wheels conversions, or custom bluetooth speakers.