Electric Vehicle Sealed Lead Acid Rechargeable Battery Low Self Discharge
Electric Vehicle Sealed Lead Acid Rechargeable Battery Low Self Discharge
Specifications:
| Nominal Voltage | 12V | |
| Nominal Capacity (C20) | 235Ah ( at 25℃) | |
| Dimension | Length | 547mm |
| Width | 275mm | |
| Height | 242mm | |
| Total Height | 242mm | |
| Weight | Approx. 77.00kg | |
| Terminal | RT-47 | |
| Internal Resistance | Approx. 4.5 mΩ (25℃) | |
| Max Charging Current | 70.5A | |
FEATURES:
· Sealed and maintenance free operation.
· Non-Spillable construction design.
· ABS containers and covers(UL94HB, UL94V-0) optional.
· Safety valve installation for explosion proof.
· High quality and high reliability.
· Exceptional deep discharge recovery performance.
· Low self discharge characteristic.
· Flexibility design for multiple install positions.
Applications:
· Medical Equipment
· Alarm System
· UPS
· Cable Television
· Power tools
· Communication Equipment
· Control Equipment
· Emergency Power System
· Toys
· Security System
STORAGE
● Batteries should be stored in dry and clean warehouse which has good air exchange system. Batteries should avoid direct sunlight. Batteries should not be near to heat (such as radiator, the distance should more than1m). Batteries should avoid any toxic gas and organic solvent.
● When the ambient temperature is less than 25℃, the longest storage life is 6 months. If ambient temperature is higher, the longest storage life varies as specified in below chart.
| Storage Temperature (℃) | ≤25 | 26~33 | 34~40 |
| Storage Time (Month) | 6 | 3 | 1 |
● Batteries should be recharged within the storage life or before using.
Charging methods: maximum charging current 8A, constant voltage 2.45±0.05V/cell (25℃);
Charging time: 15~20h; Temperature compensation coefficient: -5mV/℃/cell.
Our services:
1. All of products have been test by 3 times befor ship out.
2. Support imprint your logo on products and let your logo shine anywhere
3. OEM/ODM orders available
4. We own the best after-sale service. If any problem happen, our team will do our best to solve
Packing & Shipping
1. Payment T/T,L/C, western union and money gram
2. T/T 30% deposit, balance in full before shipment
3. Packing Color box+plastic bags+carton / as customer request
4. Warranty 1 year
OPERATION
Floating Voltage
The main purpose for float-charging is to supplement the self-discharge lost of battery capacity and keep the proper oxygen compound cycle. If the floating voltage is not set properly, it will cause over-charging or under-charging of battery. The severe over-charging may cause battery thermal runaway. On the other hand, under-charging of battery for long time may cause early failure of battery. The set of float charging voltage is relevant with the temperature of the battery. When the temperature is between 21-26℃, the floating voltage is 13.65V/pcs. Adjust the floating voltage(-18.0V/℃/piece) when the temperature is above the range. If the ripple current of the charging equipment is accord with the recommendation of the Manual, use the daytime temperate as the floating charging temperature, otherwise use terminal temperature as standard. The best floating voltage of the battery in different environment temperate is as following
| Working Environment Temperature (℃) | Charging Voltage(V/pcs) |
| -5~4 | 14.05 |
| 5~10 | 13.95 |
| 11~15 | 13.85 |
| 16~20 | 13.75 |
| 21~26 | 13.65 |
| 27~32 | 13.50 |
| 33~38 | 13.45 |
| 39~44 | 13.35 |
| 45~50 | 13.25 |
Fast Charging
Under special condition, discharged battery needs fast charge with limiting current 0.30C20(A). When the terminal voltage reaches 14.40V per piece, it should be transferred into floating operation. But please note it is under load bearing.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.