Quick DetailsPlace of Origin: Yunnan,Website: , China (Mainland)Brand Name: SunstoneModel Number: OPS2-350Usage: power plant, hydropower stationVoltage: 2vSealed Type: SealedMaintenance Type: Low RateSize: 124*206*471mmWeight: 21KgNominal Capacity: 350AHbrand: OEM is acceptedContainer Material: ABSTerminal: F1 or F2Packaging & DeliveryPackaging Details:Carton+PalletDelivery Detail:Shipped in 30 days after paymentProduct Description Deep Cycle Solar Battery, Rechargeable Lead Acid 2v 350ah OPzS Tubular Flooded battery Battery for Solar / UPS / Inverter / Wind Energy, etcIntroduction for OPS series Sunstone OPS series battery is flooded battery with tubular plate technology which is accordance with DIN ( OPzS ) Standard. It can supply more than 20 years life.General Features· Capacity range: 200Ah-3000Ah· Long working life: >20years· Low self-discharge rate: ≤2%/month · Cycle life: 100% DOD 1800times ; 80% DOD 2200times; 50% DOD 3700times; 30% DOD 5500times· High charge acceptance performance· Widen operation temperature rang:- 35ºC~65ºC· Grid: made of rare earth alloy with patented formula, thicker and anti-corrosion, ensure stronger ability to recover from deep discharging· Positive Plate: tubular type with die-casting, use quaternary alloy (Pb-Ca-Sn-Al), good corrosion resistance and long service life.· Negative plate: improved high-density lead paste with patented design · Separator:  PVC-SiO2 separator imported from German, low internal resistance, high pore rate and long life· Safety valve: good sensitivity, safe and reliable, equipped with flame arrester/acid filter· Battery case: high strength ABS and durable design· Voltage class:  2V· Float charge voltage: 2.25V-2.3V· Equalized charge voltage: 2.4V-2.45V Certificate  Package:Shipment:1.By sea,by air Shipping, other good shipping way also welcomed.2.we will send products in 20-30 days after the bank receipt.3.A tracking number and photos of products will send by email after arrange shipped. Payment:1.Pay through T/T, western union, PayPal…2.Price term: FOB Zhuhai port, FOB Shenzhen port, CNF, CIF, CFR, Door to Door.3.The customer is responsible for any tax or bank charges by their countries. Orders:1.Vast experience Drop shipping.2.Small orders and sample orders are welcomed, if we have stocks.3.shipping on time.4.any problem can get in time communication by 24 hours. Our FactoryAdvantage:1. The battery is full of power when it's out of factory, no need to use liquid charge;2. no memory, no need to discharge battery use, suitable for circuit design;3. by high partition, adsorption and strong;4. there is no flowing liquid (poor liquid), does not leak acid and free Upside down,5. comply with environmental requirements, ease of use,6. the use of lead-calcium alloys, battery self-discharge is very low,7. easy storage, less maintenance;8. using ABS plastic shell and valve technology for safe use.Notice1. Don't near the hot source and don't under the sunshine.2. Don't charge in the sealed container. 3. Ambient temperature is important factor for the battery operation. When the ambient temperature is too high, Battery plate corrosion will be increased, while absorbing more moisture; When the ambient temperature is too low, the battery will not be full charged. All this will affect the battery life. Therefore we suggest the working ambient temperature is around 25 º C.4. Battery charge and discharge current usually uses the concept C, the actual value of C is related to the capacity of the battery. For example, a 100AH battery: 1C = 100A. Charging current is around 0.1C; The charging current must not be bigger than 0.3C. Discharge current general requirements in 0.05 ~ 3C range.5. After the battery is full converted to float charging, the float voltage is around 13.0V. If the charging voltage is too high will cause the battery overcharge, otherwise the battery will not be full charged. Charging voltage is abnormal, it may be caused by the battery configuration error, or it may be caused by controller failure. Do not choose the controller with bad quality.6. No short circuit. It should be addition charge if you don't use, and single charge per three months, to avoid irreversible sulfating. The battery should be changed when the battery jar broken or the electrolyte omitted, to avoid acid corrosion.7. Don't store in the space of acid gas.8. You should be careful and regular check when use the battery. To avoid the battery don't work. You should change the battery if the capacity is not full or has been damage, especially after one year using.9. Depth of discharge of the battery life is also a important factor for lifetime of battery, the deeper the battery discharge, the fewer the number of cycles, so battery should avoided from deep discharge.10. Don't put the battery in the fire, or it will explode.11. Please use cotton cloth to clean, if the battery is broken down and leak electrolyte. Please wash your skin when touch the electrolyte.12. Don't clean the battery by using the organic solution. (e.g. petrol)