Specifications
The product can be used for long time with good quality and reasonable price. We have exceed 20years' producing experience.4V4ah Sealed Rechargeable Medical Equipment Valve Regulated Lead-Acid Battery
1. Valve regulated lead acid battery;
2. 5 years in standy service;
3. 400 cycles at 50% DOD in cycle service;
"VC" series is a general purpose battery with 3-5 years in standby service or more than 400 cycles at 50% depth of discharge in cycle service.
| NOMINAL VOLTAGE | : 4V |
| NOMINAL CPACITY(20hr) | : 4Ah |
| DIMENSIONS | |
| TOTAL HEIGHT | : 100mm ( 3.94 inches ) |
| CONTAINER HEIGHT | : 94mm ( 3.70 inches ) |
| LENGTH | : 151mm ( 5.94 inches) |
| WIDTH | : 98mm ( 3.86 inches) |
| WEIGHT | : 780g |
| CONTAINER MATERIAL | : UL94HB ABS |
| : UL94V-0 ABS | |
| INTERNAL RESISTANCE ( 25°C,77°F) | : ~14mΩ |
| DISCHARGE CAPACITY UNDER DIFFERENT TEMPERATURES | |
| 40°C | : ~102% |
| 25°C | : ~100% |
| 0°C | : ~85% |
FEATURES:
1) Maintenance-Free Operation
Absorbent Glass Mat (AGM) technology ensures efficient gas recombination up to 99% and freedom from electrolyte maintenance. During the expected float service life of Double Tech batteries, no need to check the specific gravity of the electrolyte or add water.
2) Good Discharging Ability
Tight assembly technology ensures an excellent high-rate discharge performance.
3) Long Service Life
A unique corrosion-resistant grid alloy ensures Double Tech batteries have long service life.
4) Low Self Discharge
Using high purity raw materials ensures Double Tech batteries have less self-discharge.
5) Environmental & Non-polluting
Gas Recombination technology ensures the battery high seal reacting rate, which can prevent the acid fog from separating out.
6) Safe & Reliable
Efficient venting system automatically release excess gas when the pressure rises above the normal level & reseals the valves when it returns to the normal rate, which can protect the battery from bursting.
APPLICATIONS AND MAINTENANCE:
1) It’s Sealed Valve Regulated with none requirement to add extra water or
maintenance when using
2) Excellent High-Rate Discharge Performance: Being propitious to start with high
current
3) Recharging: when open circuit voltage is lower than 12.6V(12V series) or 6.3V(6V
series) before using
Recharging Method: Charging 4-10 hours by 0.1C10 constant current
4) Charging Voltage, when normal using, is 12.8V-14.5V(12V series) or 6.9-7.2V and
Max Charging Current 0.4-0.5C10(A)
5) Application Temperature: -20-60°C
6) Not upside down when transporting, storing and using
7) Recharging: Offloading the battery to recharge when e-bike could not start well,
poor lamp lighting and weak trumpet
8) Timely Recharging if long time no use. Normally, it’s 1-2months.
Storage place should be prevented from humidity, high temperature and avoid to
keep in the place of corrosive gas and solvent.
