SK hynix HMA42GR7AFR4N-TF 16GB DDR4 2133MHz CL15 ECC Registered Dual Rank 1.2V 288-Pin Server RAM
- 16GB
- 288-Pin DDR4 SDRAM
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KEHIPI
Uninterruptible power supply module charges 3S batteries while delivering 5 V at 5 A, auto-switches to battery backup, and reports voltage, current and power over I2C
The KEHIPI UPS Module 3S (EN) is a development board that provides uninterruptible power for single-board computers such as Raspberry Pi and Jetson Nano. It charges connected 3S lithium batteries while simultaneously delivering a regulated 5 V output at up to 5 A. An I2C interface allows real-time monitoring of battery voltage, current and power. Multiple protection circuits guard against over-charge, over-discharge, over-current, short-circuit and reverse polarity, and an equalising charge function improves cell balance.
This module suits makers and engineers who need a compact UPS that can charge and supply power at the same time, with I2C telemetry for software monitoring. It is not for users who require an all-in-one kit with batteries included, nor for projects that demand a different output voltage or a higher current rating than 5 A. Buyers who need built-in wireless connectivity or a different battery chemistry should look at other solutions.
The onboard regulator delivers a steady 5 V at up to 5 A, which comfortably powers a Raspberry Pi or Jetson Nano plus typical peripherals. Headroom exists for short peaks, but sustained loads above 5 A will trigger the over-current protection and shut the output down. Runtime depends entirely on the capacity and condition of the user-supplied 3S battery pack; the module itself stores no energy.
| Brand | waveshare |
|---|---|
| Model | UPS Module 3S (EN) |
| Part Number | UPS Module 3S (EN) |
No, the batteries are not included and must be purchased separately according to the instructions.
Yes, it charges the batteries and delivers up to 5 A at 5 V simultaneously, switching to battery power automatically if the external supply fails.
The on-board battery warning indicators show connection status, and real-time voltage, current and power data are available over the I2C bus.
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