DALY Smart BMS 4S 12 V 150 A Balancer Bluetooth and NTC Sensor 66 x 164 x 21 mm for LiFePO4 Batteries Red Caravans and Photovoltaics
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DALY Smart BMS is an intelligent protection board for building lithium LiFePO4 batteries. It is designed for 4S LiFePO4 batteries with a voltage of 12 V and can handle continuous charging and discharging current of 150 A with overcurrent protection at 225 A. You can monitor the battery status wirelessly via the included Bluetooth module in a mobile application. The internal resistance of the circuit is less than 20 mΩ, which increases efficiency and reduces heating. The robust board measuring 66 x 164 x 21 mm can handle even more demanding setups.
Built-in passive balancing with a current of 100 mA equalises the voltage of individual cells and increases the usable capacity and lifespan of the battery. The board protects the cells from overcharging with a threshold of 3.75 V and deep discharge with a threshold of 2.2 V, overcurrent, and short circuit. Temperature measurement is taken care of by the included NTC sensor, and the package also includes a Bluetooth module. Low standby consumption of under 550 µA ensures minimal self-discharge of the connected battery.
Main features:
- Battery support — 4S LiFePO4 with a voltage of 12 V
- Discharge and charge current — continuously 150 A
- Overcurrent protection — at 225 A
- Passive balancing — current 100 mA
- Cell protection — against overcharging 3.75 V and deep discharge 2.2 V
- Communication — Bluetooth module included
- Temperature measurement — NTC sensor
- Internal resistance — under 20 mΩ
- Colour — red
- Dimensions — 66 x 164 x 21 mm
- Operating temperature — -35 to 75 °C
- Storage temperature — -40 to 85 °C
Contents of the package:
- 1x DALY Smart BMS 4S 12 V 150 A
- 1x Bluetooth module
- 1x NTC temperature sensor
- 1x set of B- and P- cables
This protection board represents a practical solution for assembling 12V LiFePO4 batteries for motorhomes, photovoltaics, and home energy storage. It can also be used in electric vehicles, tricycles, forklifts, and golf carts. The balancer and multi-level protection extend the lifespan of the cells and enhance the safety of the setup. Reliable operation is ensured over a wide range of operating temperatures from -35 to 75 °C. The included Bluetooth module, temperature sensor, and connecting cables allow for immediate installation without the need to purchase additional accessories.
Seller: POLARDOS
Dispatched within 1 working day (Mon–Fri) – orders paid for by 14:00 Irish time are processed on the same working day.
Availability: In stock
Transit: 5–13 working days – transit takes place on working days (Mon–Fri).
In total, please allow 5–14 working days from payment of your order.
Delivery is only possible to addresses in Ireland.
Delivery to address: €1.59
Returns
Deadline: 30 days from receipt of the goods, without giving any reason
How: notify us of your withdrawal at info@lunzo.ie and send the goods by post to the returns address:
Rotonda Rene Descartes, Parcela 101 – Nave 3
28070 Alcala de Henares, Madrid
Spain
Once you have sent the parcel, send us the proof of dispatch with the tracking number to info@lunzo.ie – this lets us process your return as quickly as possible and refund you without waiting for the parcel to arrive.
Product condition: you can also return goods that have been used or unpacked, or that no longer have their original packaging or tags
Costs: you pay the postage for sending the goods back to Spain; we charge no return fee
Refund: within 14 days of receiving your notice of withdrawal; we may withhold the refund until the goods have arrived back or until you provide proof that you have sent them
Exchanges
Deadline: 30 days from receiving your parcel (exchange for a different size, colour or variant)
How: write to us at info@lunzo.ie, giving your order number and the variant you want – once we have checked that it is available, we will send you instructions for the exchange, including the address to which you should send the original item
Costs: you pay to send the original item back; the new variant will be sent to you at no further charge
Faulty or damaged goods
Period for claiming a fault: up to six years from delivery of the goods – within the first 30 days you can reject a faulty product and ask for a full refund, and for the first 12 months a fault is presumed to have been present on delivery
How: write to us at info@lunzo.ie and attach a photograph or a video of the goods – in most cases you do not have to send the goods back
Remedies: a replacement with a new item, a reasonable price reduction, or a refund of the full purchase price
You will find the details in Delivery and Payment, Returns and Exchanges, Faulty Goods.
Seller:
Urad Bianjiang Commerce Co., Ltd.
Address: Ximen Menkou, Baoyuan Area, Bayin Town, Urad Back Banner, Bayan Nur, Inner Mongolia, 015000, China
E-mail: ec-connection@web.de
Telephone: +86 135 6052 3271
Manufacturer:
Urad Bianjiang Commerce Co., Ltd.
Address: Ximen Menkou, Baoyuan Area, Bayin Town, Urad Back Banner, Bayan Nur, Inner Mongolia, 015000, China
E-mail: ec-connection@web.de
Telephone: +86 135 6052 3271
EU responsible person:
SELLERCROSS LTD
Address: 200 rue de la Croix Nivert, 75015 Paris, France
E-mail: info@sellercross.com
Telephone: +33 7 80 95 16 88