PCB for 2 Cells 7.2V Li-ionLi-Polymer Battery Lithium Battery Bms
Battery Management System Color And Size Customized
Battery Management System (BMS)
You'll need a BMS to monitor your cells during charging and
discharging. Basically it protects the cells from getting drained
too far or getting overcharged. When choosing a BMS you need to
match two main factors: voltage and current rate (more important
for discharge than charge current). If you are building a 36V
battery, you'll need a 36V BMS (or usually called 10s, meaning 10
cells in series) to match your battery. A 48V battery uses a 13s
BMS and a 52V battery uses a 14s BMS. Just make sure you choose a
BMS configured for the same amount of cells as the battery you are
building. Also remember to check the discharge current. If you want
your battery to be able to handle 20A continuously, choose a BMS
that is rated at least 20A, and higher is better to give you a
safety buffer.
(Product specifications)
| cells | 2S |
| type | Lithium 18650 |
| make | RYDBAT |
PCB Specifications:
| Item | Content | Criterion |
| Over Charge Protection | Over charge detection voltage | 4.280±0.025V |
| Over charge detection delay time | 256-1000ms |
| Over charge release voltage | 4.10±0.03V |
| Over Discharge Protection | Over discharge detection voltage | 2.7±0.05V |
| Over discharge detection delay time | 32-150ms |
| Over discharge releas voltage | 3.0±0.01V |
| Rated operational current | ≤5A |
| Over Current Protection | Over current detection current | 8±2A |
| Release condition | Cut load |
| Detection delay time | 4-16ms |
| Short Protection | Detection condition | Exterior short circuit |
| Protection | Have |
| Release condition | Cut short circuit |
| Balance | Balanced open voltage | / |
| Balanced release voltage | / |
| Balanced current | / |
| Temperature Protection | Operation temperature | / |
| Recovery temperature | / |
| Interior Resistance | Main loop electrify resistance | RSS≤60mΩ |
| Current Consumption | Current consume in normal operation | ≤ 10.0uA Max |
| NTC | 10kOhm 3380 1% NTC | Built-in |
| Dimension (L*W*H) | 30.4 x 15 mm |
Usage and Attention:
- After purchasing the protection mold, users should connect lines in
compliance with the instruction. Voltage usually exists in the
battery, so operators should peel one line and then connect another
starting from B-. Lines should be connected from the low position
to the high position with no mistake of order, or the irreparable
damage could be caused.
- When lines get connected, bits of copper and tin should not cling
to the guard shield.
- Protection board should be connected to battery group with
compliance to specifications and any leading line should not be put
on the back of the board but on the lateral side.
- When equipping the guard shield, hard epoxy sheer should be fixed
on the back of the board as the barrier to prevent the squeezing
against short circuit.
- When welding output lines, power supply line with the proper
diameter should be chosen to prevent great temperature rising and
great dropping of line voltage while high current discharges.
- The guard shield is usually fixed in the battery box, insulation,
heat relief and tightness should be greatly concerned, or the
internal short circuit could lead to some danger.
- The full-charged battery group should be put properly out of
children touch.
- If any unusual condition appears during the using process, please
stop using the product immediately.
About company:
* Ryder has 15 years experience of battery packs. Our customers are
from all over the world.
* Develop products according to customer requirements or product
orientation.
* The automated battery assembly line can process 7K-10K cells
every day to guarantee fast delivery for the orders.
* Offer 200 test points for the battery within 60V 10A and 32 test
points for the battery within 100V 20A.
* SAP & MES dual system to coordinate daily production.
Delivery Time:
- Material Preparation Time: 7-15 days (or inventory)
- Production & Assembly Time 3-10 days
- Testing & Packaging Time: 2-10 days
- Total Delivery Time: 30-45days
- The faster delivery could be negotiable.
Factory photo:
Contact with our sales team for your OEM and ODM order.
OEM/ODM Service:
If you want to display your own brand logo in products, bags,
labels or anywhere. Or you need to develop battery packs according
to your product orientation. Our OEM and ODM services are ready to
do it.
Packing:
According to Stardard Export Packing.
Carton box, wooden box, wooden pallet
Ryder Electronics established in Shenzhen on July 18, 2005, mainly
in the business of battery packs. In 2009 the company passed
ISO9001 and improved the product quality standard to fulfill the
high-end requirements from our customers.
In 2012, Ryder Electronics moved to a new facility and expend the
production capacity, the Productivity improved nearly 10 times than
before.
In 2013, Ryder Electronics imported ERP (SAP) system to supervise
order execution process.
In 2017, Ryder Electronics expanded the SMT, imported high-speed
patch machine from Germany.
Until now the factory grows into a modern enterprise which
integrated injection molding, PCB designing, SMT and battery pack
assembling services.
In 2018 the company passed ISO14001certification, introduced
automated battery production line to further improve the production
quality and capacity.
