Daly 4S 1 A BMS Smart Active Balancer with Bluetooth for Li-ion and LiFePO4 Batteries 65 x 115 x 19 mm Red Home and Solar Storage
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This smart active balancer from Daly balances the voltage of individual cells in 4S batteries and offers wireless connectivity via Bluetooth with status monitoring in a mobile app. Active balancing, unlike passive, does not dissipate excess energy as heat but transfers it from more charged cells to those less charged, thus keeping the entire battery pack balanced and reducing losses. The balancer operates with a maximum balancing current of 1 A and supports Li-ion, LiFePO4, and LTO batteries. In addition to wireless connectivity, it also offers RS485 and UART communication interfaces for integration into superior systems and monitoring. The compact body in red with an LED indicator can be easily placed directly next to the battery pack without complicated installation.
Key features:
- Active balancing — energy is transferred between individual cells, ensuring that the voltage remains uniform across the entire 4S assembly and the battery is fully utilised.
- Bluetooth connectivity — the included module allows monitoring of the voltage and status of individual cells directly in the mobile app.
- Balancing current — a maximum current of 1 A ensures effective balancing even with cells that have a larger voltage difference.
- Wide compatibility — the balancer is suitable for Li-ion, LiFePO4, and LTO batteries with various nominal voltages.
- Communication interfaces — RS485 and UART allow connection with other devices and control systems.
- Compact dimensions — the body measuring 65 x 115 x 19 mm fits into tight spaces next to the battery.
- LED indication — a green indicator on the body signals that the device is operational.
- Red casing — a sturdy plastic cover protects the internal electronics from damage.
Contents of the package:
- 1x Daly 4S smart active balancer
- 1x Bluetooth module
The balancer is suitable for home and solar energy storage and smaller battery assemblies with four cells in series. Regular voltage balancing helps to extend battery life and protects individual cells from overcharging and excessive discharging. With Bluetooth connectivity and a mobile app, you have an overview of the status of individual cells at any time. Support for Li-ion, LiFePO4, and LTO chemistry, along with RS485 and UART interfaces, ensures wide applicability in various types of battery systems. Automatic operation requires no complex setup and keeps the cells consistently balanced even during regular daily use.
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