Chris_H

Will this cable work to upgrade the firmware on a Hubble AM-2? https://www.diyelectronics.co.za/store/serial/350-usb-rs232-cable.html

I have the same question. Am curious to know

Hey Morney

Hi Morney Yes you can install a lithium battery for the inverter, should not be difficult to open it and replace the battery with a lithium. IF you don't want to spend too much money you can order a 50ah battery from Geewiz for like R3510 with free delivery https://www.geewiz.co.za/lithium-ion-batteries/202973-lalela-lithium-lifepo4-battery-12v-50ah-640wh-2-year-warranty.html

yes the reduction in battery AH capacity was as a result of the battery firmware upgrade.

I seen the same, had 3 older ones and 1 new one, after firmware upgrades my inverter only see 400aH

Thanks all, but none of the solutions will work for my needs, need something that alert me when the battery drops below a certain voltage, the cutout switches are great for dual battery type situations but not for my setup.

hi , the inverter is a 1440w small one, does not have any settings to change

My mecer inverter was built for lead acid batteries so does not shutdown before my lithium battery goes completely flat. The battery goes into protection mode and I need to wake it up with another 24v battery. Does anyone know of a 24v battery voltage alarm or buzzer to warn me when its low?

Where did you buy the inverter?

nice one! What would you need Cloudlink for?

hi Modina, thank your for the detailed response. Although my system is AC, the inverter has a fairly good efficiency of 90%, compared to some of these backup trolleys with inverters that has as low as 60% efficiency, the downside to a DC only system is you cut out your AC devices for utilising it, as well has the complexity of having to cater for different DC voltages. MY main selling point is having batteries with 3000+ cycles compared to the Ecoflow/Gizzu's etc you looking at 500 to 1000 Cycles. Mine is modular so you can easily upgrade or replace components. When these other small fancy boxes fail after warranty period you sitting with a big door stop.

I needed to find a solution for my parents and mother in law to watch tv and run Wi-Fi etc. during 4 hours continuous load shedding. Built 2 system 9 months ago in a plastic utility "ammo" box and works very well, their friends and my people at work asking me to build for them to , so "JuiceBox" started. 350W pure sine wave inverter, 640wh Lithium battery and 7ah Victron lithium capable charger. Here's my FB page, I sell them for R8750 each and can ship anywhere in SA. https://www.facebook.com/JuiceBoxSA 2 page Brochure.pdf

Planning on using PWM.

This is the charging characteristics of the solar charger I am considering using, should be OK to use it with standard values.