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Topic starter
Introducing the all-new EG4 WallMount 314Ah Indoor Battery — a next-generation energy storage solution designed for homeowners and small businesses seeking reliable power and total control. This newly released 16.0 kWh wall-mounted battery delivers 200A of continuous output, offering powerful whole-home backup in a sleek, compact design built specifically for indoor installations.
Engineered with advanced safety protections, intelligent self-heating for cold environments, and an easy-to-use monitoring interface, the WallMount 314Ah sets a new standard for simplicity, safety, and performance. With a 10-year warranty and an impressive lifespan of 10,000+ cycles at 80% depth of discharge, this new release provides long-term, dependable energy storage you can count on.
Posted : November 19, 2025 8:26 pm
PowerUp reacted
Is it available for purchase yet?
Also I have two 280ah indoor wallmount, can this be added using the parallel indoor cable?
Posted : November 19, 2025 8:31 pm
Great news - Impressive evolution!
- Could you please offer tech details about combing this unit with existing 280Ah Wallmount?
- For instance this new unit has Active Balancing
- How will the separate Wifi connectivity be leveraged
- Just for Firmware upgrade? Or more data about battery performance (like cell level voltage to Monitoring server)?
Appreciate the accessibility of the BMS for long-term maintenance.
This post was modified 2 months ago by PowerUp
Posted : November 19, 2025 8:48 pm
Topic starter
I'm gathering more details on paralleling these batteries together and also about the Wi-Fi Antenna.
It does have active balancing.
Posted : November 19, 2025 9:41 pm
PowerUp reacted
is it likely that the 12000XP will get 9540 ESS certified with the new WallMount 314Ah battery?
(assuming the system has only the new 314Ah batteries and none of the old 280Ah batteries and no mixing).
Posted : November 22, 2025 12:28 am
Topic starter
@sunnyside I don't have any additional information on that, but as soon as I do, I will let you know!
Posted : November 24, 2025 10:28 pm
Please expand on the 12000XP with 314Ah UL 9540 certification. Is it currently undergoing evaluation?
Posted : November 26, 2025 1:57 pm
Topic starter
I will look into this, but at the moment I don't have any information on the 12000XP and the new WallMount battery being certified for UL 9540
Posted : December 8, 2025 10:54 pm
@eg4eric is there any plan to get the combination of 314 and 280 batteries UL certified?
Posted : January 1, 2026 3:07 pm
Topic starter
@jep83
I haven't heard anything regarding this yet, but I will see if I can get any information on it.
Posted : January 2, 2026 10:34 pm
@eg4eric thanks. Have 3 of the smaller and bought the larger without realizing they weren't completely compatible. Surprised by that
Posted : January 2, 2026 11:10 pm
@eg4eric Can you please offer or direct to Technical information on how the Active Balancers are set?
Balance Start Voltage, Balance Current (doc says 2-3A ... what circumstances causes it to be each), Balance Trigger Delta, Balance Stop Voltage?
Will any of these be configurable by the installer?
Finally, If necessary can this be activated/deactivated?
Appreciate your attention, looking forward to EG4's continued success in 2026!
Posted : January 4, 2026 7:03 am
@eg4eric announced some important improvements with new firmware for this battery.
How does someone upgrade that firmware wirelessly?
Posted : January 8, 2026 9:22 pm
Topic starter
@eg4eric Can you please offer or direct to Technical information on how the Active Balancers are set?
Balance Start Voltage, Balance Current (doc says 2-3A ... what circumstances causes it to be each), Balance Trigger Delta, Balance Stop Voltage?
Will any of these be configurable by the installer?
Finally, If necessary can this be activated/deactivated?
Appreciate your attention, looking forward to EG4's continued success in 2026!
I’m looking into this and have consulted with our battery technicians. I’m currently waiting for their response.
Posted : January 12, 2026 2:51 pm
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