Product Description

Daly BMS 8S 24V 15A 20A 30A 40A 50A 60A 80A For LiFePO4 lithium Battery Pack

Model: DL8S (3.2V Rated LiFePO4 not for 3.7V rated Li-ION Battery)
common Version : common port for charge/discharge

Highlight：For the same model, its charge current is less than discharge current because Daly PCBAs were updated to well protect customer battery. Any request, Please contact us.

Overview
◆DL8S24V15A/20A/30A/40A/50A/60A PCB is used for 8 series 24V battery pack.
◆We can design it for various lithium batteries like LiFepo4, LiMn2O4, and Li-polymer etc.
◆The main functions are: over charge protection, over discharge protection, over current protection, short-circuit protection, temperature protection etc.
◆According to the customer request we can develop PCM in different sizes and structures.
◆BMS manufactured by  high quality Mos and IC imported . Keep your battery long cycle serivce life time.

2. Advantage
◆Use top quality (A-level) protective integrated circuit IC, from the solution of Seiko
◆Strong load ability, constant discharge current 15A/20A/30A/40A/50A/60A, use high voltage resistance, low inner resistance power Mosfet. The heat sink will greatly help cooling.
◆IC itself has power balancing function. The circuit is simple and reliable.
◆Typical voltage detection for each cell. So each battery will be prevented over charged or over discharged. Over current and short circuit protection function is very reliable.Long time short circuit of the load won’t affect the PCB and the battery.Temperature protection during charging and discharging.
◆Extreme low power consumption. The consumption of the whole device is less than 50uA.
◆PCB use high anti-corrosion, high water resistance, high impedance ESD conformal Coating.


Package includes：

1*DALY 60A Lifepo4 BMS

1*Cable

 
FAQ

Q: How do I know what material OR type my battery is ?

A: Please look the battery body,if the normal voltage of your battery shows 3.2V,the battery is LiFePo4.If the normal voltage of your battery shows 3.6V or 3.7V, the battery is Li-ion or Li-polymer battery, You can also ask battery manufacturer for the material of battery.


Q: Is this BMS suit for my battery?

A: This BMS suit your battery or not depends on below 2 points:

How many series you cell is in your battery pack? The BMS you buy must be same series as your battery pack.

What material your battery is? Only the LiFePo4 battery has different electric parameter from other battery, so if you need buy the BMS for LiFePo4, Please let us know firstly.

 
Q: What is the Common port and Separate port? what is the difference?

A: We take 13S 48V16A BMS as example:

Common port 16A means your charge cathode and discharge cathode are connected in the same point end (our P-),  charge cathode and discharge cathode are used in the common connection port, so the charge current and discharge current are same as 16A.

Separate port is separately connected by charge cathode (our C-) and discharge cathode (our P-), so the charge current and discharge current are different, discharge current is 16A, charge current is 8A.

 
Q: What is the balance function?Do we need cell balance or not?

A: The working principle and function are as followings:

When your one cell voltage was reached balance voltage(Li-ion 4.18V, LifePo4 3.6V), that cell balance start work, balance resistance starts discharge with 35mA, that cell was in both charging and discharging status, and other cells were not reached balance voltage(Li-ion 4.18V, Life Po43.6V), so they are only in charging status, when the fast cell voltage was reached overcharge voltage (Li-ion 4.25V, Life Po4 3.75V),BMS starts off power protection, all the cells are stop charging, this process will enable your battery charging in balance current, and your battery voltage are in balance status.

However, if your cell voltage difference are in a big range, The equilibrium effect is almost zero,The solution is to replace cells with large voltage gaps.

 
Q: The relationship between battery capacity(AH or mAH) and BMS current(A)?

A:There is no direct relationship between battery capacity and BMS current, big capacity doesn't mean big current, but rely on continue current, that is to say if your engine is powerful, you should choose high current of BMS, it is not relied on battery capacity.


Q: What type of charger should i choose?

A: Lithium battery must choose specific charger, don't use charger for leadacid battery, for leadacid charger may have MOS with high pressure breakdown protection, which will not protect of BMS over charge. LiFePo4 battery charger voltage = number of battery strings X 3.6V, while Li-ion battery charger voltage = number of battery strings X 4.2V.

Q: What current BMS should I choose ?

A: Take 10S 36V as example:

What current BMS you choose is depend on your E-bicycle motor power and current limitation of controller,eg.16A for 350W and below, 25A for 500W and below, 35A for 800W and below, 60A for 1000W and below,  over 1200W are contact with our service specialist for suggestion, continue current shall be higher than current limitation in controller.

Q: How to contact for BMS?

A: Please send messages at below or E-mail us and we are always glad to help you with BMS


















  • We are a professional worldwide wholesale company, with our own factory located in China. We supply many products including Consumer Electronics, Home & Garden, Health & Beauty, Apple accessories, Computers accessories, Car accessories, Clothing accessories, Sports & Outdoor Accessories.
  • Our principle: offer high quality product to worldwide at reasonable prices. Customers 100% satisfaction is our top priority.
  • We accept Credit Card, Debit Card and eCheck payments through PayPal.
  • Payment should be done within 7 days after the end of the Auction. Otherwise Unpaid Item Dispute will be filed with eBay.
  • eCheck payments take 3 to 7 business days to clear through PayPal.
  • International Buyers Please Note:

           a) Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility.

           b) Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying.

  • Please list your special requests (color, packages, etc.) in the PAYPAL NOTES SECTION when you make payment.
  • We ship items to your PayPal confirmed address only. Please make sure your address in PayPal is matched with your shipping address before you pay.
  • We are unable to take any responsibility for wrong address, any custom delay or tax. Transit time is highly depended and provided by Postal Service.
  • All items will be dispatched within 1 business day after receipt of payment. Please notice that orders placed on weekends and public holidays will be dispatched on the next working day.
  • Delivery time is as following

  • It may take longer to other countries or remote areas.
  • If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you
  • We are a professional worldwide wholesale company, with our own factory located in China. We supply many products including Consumer Electronics, Home & Garden, Health & Beauty, Apple accessories, Computers accessories, Car accessories, Clothing accessories, Sports & Outdoor Accessories.
  • Our principle: offer high quality product to worldwide at reasonable prices. Customers 100% satisfaction is our top priority.
  • We back our products with a 60-DAY Return GUARANTEE. Customers should inspect item(s) and notify us within 60 days of any problems.
  • If you have a problem with your item, please contact us before leaving feedback. All items being returned must be issued an RMA number BEFORE they are returned.
  • 12 months Warranty from the date of purchase covering manufacturing defects. This warranty excludes any damage caused by the user.
  • Return shipping is to be paid by the Buyer.
About Us
  • We are a professional worldwide wholesale company, with our own factory located in China. We supply many products including Consumer Electronics, Home & Garden, Health & Beauty, Apple accessories, Computers accessories, Car accessories, Clothing accessories, Sports & Outdoor Accessories.
  • Our principle: offer high quality product to worldwide at reasonable prices. Customers 100% satisfaction is our top priority.
Payment
  • We accept Credit Card, Debit Card and eCheck payments through PayPal.
  • Payment should be done within 7 days after the end of the Auction. Otherwise Unpaid Item Dispute will be filed with eBay.
  • eCheck payments take 3 to 7 business days to clear through PayPal.
  • International Buyers Please Note:

           a) Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility.

           b) Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying.

  • Please list your special requests (color, packages, etc.) in the PAYPAL NOTES SECTION when you make payment.
Shipping
  • We ship items to your PayPal confirmed address only. Please make sure your address in PayPal is matched with your shipping address before you pay.
  • We are unable to take any responsibility for wrong address, any custom delay or tax. Transit time is highly depended and provided by Postal Service.
  • All items will be dispatched within 1 business day after receipt of payment. Please notice that orders placed on weekends and public holidays will be dispatched on the next working day.
  • Delivery time is as following

  • It may take longer to other countries or remote areas.
  • If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you
Contact Us
  • We are a professional worldwide wholesale company, with our own factory located in China. We supply many products including Consumer Electronics, Home & Garden, Health & Beauty, Apple accessories, Computers accessories, Car accessories, Clothing accessories, Sports & Outdoor Accessories.
  • Our principle: offer high quality product to worldwide at reasonable prices. Customers 100% satisfaction is our top priority.
Returns
  • We back our products with a 60-DAY Return GUARANTEE. Customers should inspect item(s) and notify us within 60 days of any problems.
  • If you have a problem with your item, please contact us before leaving feedback. All items being returned must be issued an RMA number BEFORE they are returned.
  • 12 months Warranty from the date of purchase covering manufacturing defects. This warranty excludes any damage caused by the user.
  • Return shipping is to be paid by the Buyer.
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