Monday, April 15, 2024

Sun Fun Kits presents: The SFK-275SE Smart Endurance Active Balancing Battery! Yes the lightest and most energy dense LFP battery on the market that also features a 150 amp bms, support for 4s series (48v) connections, active balancing and balancing control, and an easy to use smart app that allows you to monitor a single or up to 4 batteries simultaneously!

Wednesday, March 20, 2024

Nice example showing the 300HP connected to a Victron system using the data port!

Monday, February 26, 2024

All new kits will have routed out access holes vs the hot knife that we used previously for a cleaner and nicer look.

Friday, February 16, 2024


SFK HUB Final PCB design! 4 Hardware RS-485 connections, 4 BLE device connections, and native canbus / rs-485 inverter output. Built in Microsd for data logging. Coming Q2 2024!

Friday, January 26, 2024


Extremely important! Always use a BMS to build your battery, without it you will risk damage to your cells. See attached what can happen if you do not use a BMS.

Wednesday, January 24, 2024

1200 REPT 280 Cells arriving stateside in 2 weeks.