DALY · Battery packs & BMS
BMS Li-ion 3S to 13S for 12V to 48V battery
A Li-ion battery pack without protection risks overcharging, deep discharge, and short-circuiting. This DALY BMS monitors and protects the cells, essential for assembling or repairing a bicycle or scooter battery safely.
Note de 5.0/5 basée sur 19 avis clients.Model: Li-ion 3S 12V
Quantity
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Product details
In use, this BMS (Battery Management System) is the protective brain of a Li-ion battery pack. It balances cells during charging and cuts off in case of overcharge, excessive discharge, overcurrent, or short circuit: it is what preserves the battery and makes it safe. Made by DALY, a recognized brand in the field, it is available for different numbers of series-connected cells — 3S, 4S, 6S, 7S, 10S, 12S and 13S — corresponding to 12 V to 48 V packs — and with a current of your choice (15, 20, 40, 60 or 100 A, with or without an NTC temperature probe). Key point: the S configuration is FIXED and must exactly match your pack (a 12S BMS only works on a 12S pack); it is also designed for Li-ion cells (not LiFePO4). This is a wired version, without Bluetooth. Reserved for people who know how to wire a battery pack. Get a protected and reliable Li-ion pack, provided you choose the right configuration.
Compatibility and uses
This DALY BMS protects a lithium-ion (Li-ion) battery pack, not LiFePO4. It is available in several series configurations, which must match EXACTLY your pack: 3S and 4S (12 V), 6S and 7S (24 V), 10S (36 V), 12S and 13S (48 V) — a BMS of one series only works on a pack of the same series. This is a wired version (no Bluetooth function). Discharge current offered: 15, 20, 40, 60 or 100 A (with or without NTC probe depending on version). CE/RoHS certified. Charger and battery are not included. Select your version: the number of series cells corresponding to your pack. Reserved for users who know how to wire a BMS onto a battery pack (bike, scooter, etc.). Check the chemistry (Li-ion) and the number of cells before ordering.
Technical specifications
- Brand: DALY
- Type: BMS (battery protection card)
- Chemistry: Li-ion (not LiFePO4)
- Configurations (choice): 3S, 4S, 6S, 7S, 10S, 12S, 13S
- Current (choice): 15, 20, 40, 60 or 100 A (NTC probe option)
- Voltages: 12 V (3S/4S), 24 V (6S/7S), 36 V (10S), 48 V (12S/13S)
- Protections: Overcharge, excessive discharge, overcurrent, short circuit
- Connection: Wired (no Bluetooth)
- Configuration: Fixed number of cells (must match the pack)
- Target audience: Users who know how to wire a pack
- Weight: 0.18 kg
Usage advice
The team's advice: choose the S series exactly equal to your pack; also check that your cells are Li-ion.
Presentation
This DALY BMS protects a Li-ion battery pack: cell balancing, cut-off in case of overcharge, excessive discharge, overcurrent or short circuit. Several configurations (3S to 13S, 12 to 48 V) and currents (15 to 100 A), to be matched to the pack. Wired version, no Bluetooth, for Li-ion only.
Key features
- Protects the pack: Overcharge, discharge, short circuit.
- DALY brand: Reference for BMS.
- Many configs: 3S to 13S, 12 to 48 V.
- Balancing: Preserves cells during charging.
For whom?
For those who assemble or repair a Li-ion battery pack (bike, scooter). And for the experienced electronics hobbyist.
Frequently asked questions
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Frequently asked questions
What is a BMS used for?
To monitor and protect a battery pack (overcharge, over-discharge, overcurrent, short circuit) and balance the cells.
How to choose the configuration?
The number of cells (S) must exactly match your pack: a 12S will only fit on a 12S.
Is it suitable for LiFePO4?
No, it is designed for Li-ion cells.
Does it have Bluetooth?
No, it is a wired version without Bluetooth.
Is the charger included?
No, neither the charger nor the battery.
What voltage?
12 V (3S/4S), 24 V (6S/7S), 36 V (10S) and 48 V (12S/13S).
