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AES Battery Guard MOSFET AES-BGM40 40A 12/24V
£56.94 incl. VAT - £47.45 excl. VAT
1 in stock (can be backordered)
The AES-BGM40 Battery Guard is a microprocessor-controlled, solid-state switch designed to protect batteries from excessive discharge or overvoltage. Using advanced MOSFET technology, it offers reliable, efficient control of power to connected loads in both 12V and 24V systems, with automatic voltage detection.
The unit constantly monitors battery voltage and activates an alarm output if the voltage drops too low for more than 15 seconds. This output can be connected to a buzzer or indicator lamp. If the voltage remains low for another 60 seconds, the Battery Guard disconnects the load to prevent deep discharge. In the case of excessive voltage, it disconnects the load immediately and triggers an alternating alarm signal. Compact and dependable, this device includes overload, short circuit and overvoltage protection, and allows user-adjustable undervoltage thresholds.
1 in stock (can be backordered)
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AES Battery Guard MOSFET AES-BGM40 40A 12/24V
The AES-BGM40 Battery Guard is a microprocessor-controlled, solid-state switch designed to protect batteries from excessive discharge or overvoltage. Using advanced MOSFET technology, it offers reliable, efficient control of power to connected loads in both 12V and 24V systems, with automatic voltage detection.
The unit constantly monitors battery voltage and activates an alarm output if the voltage drops too low for more than 15 seconds. This output can be connected to a buzzer or indicator lamp. If the voltage remains low for another 60 seconds, the Battery Guard disconnects the load to prevent deep discharge. In the case of excessive voltage, it disconnects the load immediately and triggers an alternating alarm signal.
Compact and dependable, this device includes overload, short circuit and overvoltage protection, and allows user-adjustable undervoltage thresholds.
Key features:
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Nominal input voltage: 12V (7V–19V) / 24V (19V–32V), auto-detect
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Nominal output voltage: equal to input voltage
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Peak current: 120A
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Max output current: 45A
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Continuous output current: 40A
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Overload protection: 45A
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Short circuit protection: integrated in driver
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Overvoltage protection: 16V (12V system), 32V (24V system)
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Undervoltage protection: user adjustable
Ideal for automotive, marine and off-grid power systems, the AES-BGM40 ensures extended battery life and safe operation of connected devices.
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Delivery & Shipping
We aim to ship products as quickly as possible. If an order is received before 3 p.m. for any items we hold in stock, dispatch will be the same day.
We use DPD and a next working day service, meaning you should receive your order the following day.
Delivery Costs:
- UK Mainland: Free delivery on orders over £75 (inc. Vat)
- UK Mainland: £6.60 (inc. VAT)
- Northern Ireland, the Scottish Highlands and Islands, and the Isle of Wight: please speak to a member of staff for a delivery quote. Additional charges apply.
- If you require delivery outside the UK, please contact a member of staff and we will arrange shipment via AES Export.
Frequently asked questions
We aim to ship products as quickly as possible. If an order is received before 3 p.m. for any items we hold in stock, dispatch will be the same day.
For all stocked items we can usually pick and pack for dispatch the same day or next morning.
For items we do not hold in stock, we try our upmost to dispatch the items within 2 – 3 working days. However, we will advise of any changes in lead time by email or phone.
We hold a huge range of Harnessflex items and Automotive Aftermarket Products in stock. However, any non stocked items, or out of stock items, can usually be obtained rapidly.
Yes, we do! Please contact a member of our team at 01924 364 464 or sales@aes.group
to place your order.
Yes, we do! Please contact a member of our team at 01924 364 464 or sales@aes.group to place your order.
Please note that delivery may take from two days, and orders should not exceed 10kg. Prices are calculated based on your location and the charges of the delivery provider.
Yes. We offer bespoke labeling and packaging on all products.
In the unlikely event that your order hasn’t arrived within the time as stated at the point of order please contact us and we will investigate immediately.
You can also track your shipment here – https://track.dpd.co.uk/
Inform both the carrier and us immediately. Retain the damaged packaging in case the carrier needs to see it. We will organise replacement goods and take care of the problem from there on.
Inform us and we will rectify the problem immediately.
We hold a huge range of Harnessflex items in stock. However, any non stocked items, or out of stock items, can usually be obtained rapidly.
We provide drawings and downloadable datasheets for each product in the catalogue section where possible.
We can email or post datasheets upon request.
Yes. As AES is a stockist distributor, we can offer our customers varied and low minimum order quantities.
Absolutely! We’ll be happy to locate the part for you and ensure it’s available as quickly as possible.
Please reach out to us at sales@aes.group or call us at 01924 364 464.
Yes, we do! We’re happy to provide competitive bulk pricing for contractors and fleet maintenance providers. You can also set up an account with us for added convenience and exclusive benefits. Contact us at sales@aes.group or call us at 01924 364 464 to discuss your needs and get started!
Yes, we do! For international orders, we have a dedicated export website to make the process seamless. Visit https://www.aes-export.com/ to explore our range of products and place your order
Related Products
AES Battery Guard MOSFET AES-BGM60 60A 12/24V
The AES-BGM60 Battery Guard is a high-capacity, microprocessor-controlled MOSFET switch designed to protect batteries in both 12V and 24V systems. It prevents deep discharge and overvoltage damage by continuously monitoring battery voltage and automatically disconnecting connected loads when critical thresholds are reached.
When the battery voltage falls below a preset level for more than 15 seconds, the unit activates an alarm output, which can be linked to a buzzer or indicator light. If the voltage remains low for a further 60 seconds, the load is disconnected to protect the battery. In the event of excessive voltage, the load is immediately disconnected and the alarm alternates on and off. With automatic voltage detection, robust short-circuit and overload protection, and a user-adjustable undervoltage setting, the AES-BGM60 offers reliable performance for high-demand applications.
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