WINSTON 12V, 2.4 kWh LiFeYPO4 Set, 200Ah Cells, BMS Mobile Monitoring

WINSTON 12V, 2.4 kWh LiFeYPO4 Set, 200Ah Cells, BMS Mobile Monitoring.
Highly Energy-Efficient Lithium Cell/Set, Original Product from Winston Battery with LiFePO4 (LiFeYPO4) Technology.

Contents of the set

• Model: WB-LYP200AHA
• Capacity: 200 Ah
• Original ThunderSky Winston part number: WB-LYP200AHA, TSWB-LYP200AHA
• Recommended initial and subsequent charging: 3,65 V
• Minimum voltage: 2.8 V
• Maximum voltage: 3.8 V
• Maximum discharge current: 3C continously
• Operating temperature: -45 to +85 °C
• Energy density: 81.01 Wh/kg

These battery cells are suitable for all traction applications including electric vehicles. Fully complies also for stationary applications - such as energy storage.
There is no Selfdischarging effect.
Can be recharged at any state of discharge - no memory effect.
LiFePO4 is a very safe technology, not spontaneous combustion, does not react with moisture or with oxygen.
All cells are supplied new directly from the manufacturer.
Original Woodenbox contains 9 cells is 543 × 509 × 425 mm large and weights 80 kg.

SPECIFICATIONS

Technology: Lithium cell (LiFeYPO4/LiFePO4)
Nominal voltage: 3.3 V
Operating voltage under load: 3.0 V
Capacity: 200 Ah
Operating temperature: -45 až +85 °C
Weight: 7,9 kg
Dimensions: 362 × 256 × 67 mm

Size of packs using 200Ah cells

1 cell – Capacity 600 Wh / Depth 55,5 mm / Weight 7.9 kg
4 cells (12V) – Total capacity 2400 Wh / Depth 222 mm / Weight 31.6 kg
8 cells (24V) – Total capacity 4500 Wh / Depth 444 mm / Weight 63.2 kg
16 cells (48V) – Total capacity 9600 Wh / Depth 888 mm / Weight 126.4 kg

Balancing and protection
Important part of each battery pack is balancing and protection electronic. Most frequent solution is BMS123 Smart Gen3. This Advanced solution for battery monitoring and management of LiFePO4 cells support Bluetooth connection with your phone, iPad, tablet or other device. Free Android and iOS application included.

Common connection diagrams for BMS & SBM
BMS123 Smart connection demonstration including Charger, Appliance and the ever important fuses and switches.

SBM is simple solution offering basic protection, diagram shows 16 cell version connected with charger and fuses.

Connecting the cells
Winston produce cells with easy to assemble square shape, terminals are made for screws allowing simple installation with spanner.

Interconnection between cells is important part of any battery pack. Original copper connectors are made of several thin layers for ideal flexibility and conductivity.
Make sure to clean oxidation from both, terminals and connectors (with Sandpaper or similar) before assembly. Oxided contacts may have very high resistance and cause unbalancing of the battery.
Plastic caps are cheap solution to prevent unwanted shortcuts and for easy plus and minus marking (red and black colors are available).

Winston battery tests

Series of destructive tests on Lithium Iron Phosphate (LiFeYPO4) cells ThunderSky Winston, learn how the cells behave in event of puncture by fire axe or intentional short-circuit with current up to 1600 A (400 C).

You can see these four tests: Puncture, Overcharge, Short-circuit, Ignition by external source
Result: LiFePO4 cells are extremely durable against physical abuse, does not endanger its surrounding even in moments of short-circuiting.