Looking at a EQ4800-L9, setup outside. Wanted to know what recommendations there are for securing the unit? With the modular design, do they lock together to atleast make it very heavy to mess with?
There is a battery mounting screw per battery that stops each battery being separated - the standard screw can be replaced with a security screw and threadlocker used which will effectively join them as a single (very heavy ~350kg) pack and the battery master can be fixed to the wall with brackets.
If you need more security than that, you would need to consider fitting an enclosure.
If you need more security than that, you would need to consider fitting an enclosure.
I've had the same question for my Evo impending install and I have been emailing with fox ess themselves who have confirmed that the covers at batterycovers co.uk are ok to use. Here's the text from Fox's PDF:
Accordingly, FoxESS confirms that the enclosures are approved for use with the product ranges
outlined below:
Inverter models:
H1-G2 / AC1-G2
KH & KA Series
Battery models (when paired with approved inverters):
EP Series
ECS Series
EQ Series
AIO Models
EVO
PowerQ
This approval is subject to the following conditions:
• The enclosure must be installed in accordance with the manufacturer’s instructions and all
relevant local regulations.
• Installers must ensure all ventilation openings remain unobstructed and that no additional
materials or equipment are introduced inside the enclosure that may compromise airflow or
thermal management.
• A suitable and readily accessible means of isolation (in line with applicable electrical
standards) must be provided to allow safe maintenance and emergency disconnection.
• The use of these enclosures does not exempt installers from meeting all applicable electrical,
fire safety, and DNO/G98-G99 requirements
Accordingly, FoxESS confirms that the enclosures are approved for use with the product ranges
outlined below:
Inverter models:
H1-G2 / AC1-G2
KH & KA Series
Battery models (when paired with approved inverters):
EP Series
ECS Series
EQ Series
AIO Models
EVO
PowerQ
This approval is subject to the following conditions:
• The enclosure must be installed in accordance with the manufacturer’s instructions and all
relevant local regulations.
• Installers must ensure all ventilation openings remain unobstructed and that no additional
materials or equipment are introduced inside the enclosure that may compromise airflow or
thermal management.
• A suitable and readily accessible means of isolation (in line with applicable electrical
standards) must be provided to allow safe maintenance and emergency disconnection.
• The use of these enclosures does not exempt installers from meeting all applicable electrical,
fire safety, and DNO/G98-G99 requirements
6.9kWh solar array made of 15x Jinko Tiger Neo panels. 7 ESE, 8 WNW, Fox EVO 10kWh with 5kW inverter. Installation booked for April 2026
Before anything I'd look into the actual theft statics, instead of jumping to the "what if's".
Another thing to note is LFPs weigh more than the Tesla batteries, and Tesla batteries are < 14kWh, so I assume would be more of a theft target as they'd be much easier to steal.
If you go to the extra expense of securing them but no one's stealing them you just waste money.
And finally solar inverters, while useless on their own, haven't been stolen in great numbers that I know of, but again smaller so more likely to be targeted if that were the case.
Another thing to note is LFPs weigh more than the Tesla batteries, and Tesla batteries are < 14kWh, so I assume would be more of a theft target as they'd be much easier to steal.
If you go to the extra expense of securing them but no one's stealing them you just waste money.
And finally solar inverters, while useless on their own, haven't been stolen in great numbers that I know of, but again smaller so more likely to be targeted if that were the case.