ZONHAN New Energy Company Limited

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Home > Company Information > How to choose the battery capacity?

How to choose the battery capacity?

ZONHAN New Energy Company Limited - Gelled-electrolyte battery for Green energy systems Gelled-electrolyte battery for Green energy systems

For example, in a street lamp system with 24V DC battery, when a lamp is 24W and work 8 hours a day, than it is (24W/24V) X 8 hours =8Ah per day. We need the battery can keep system working without solar and wind in succession 3 days. So 8Ah X 3 = 24Ah. The depth you discharge a battery to before recharging it is the depth of cycle. In a deep cycle battery, the depth of cycle could be 30%. So we can choose a 80 or 100Ah battery bank, because 80AH X 30% =24Ah.

What type of battery should I use (automotive or deep cycle)?

We recommend a kind of deep cycle, VRLA (Valve-Regulated Lead Acid) batteries which will give you several hundred complete charge/discharge cycles. If you use the normal vehicle starting batteries they will wear out after about a dozen charge/discharge cycles. If you do not have a deep cycle battery, we recommend that you run the engine of your vehicle when operating the power inverter.

When operating the inverter with a deep cycle battery, start the engine every 30 to 60 minutes and let it run for 10 minutes to recharge the battery.

When the inverter will be operating appliances with high continuous load ratings for extended periods, it is not advisable to power the inverter with the same battery used to power your car or truck. If the car or truck battery is utilized for an extended period, it is possible that the battery voltage may be drained to the point where the battery has insufficient reserve power to start the vehicle. In these cases, it's a good idea to have an extra deep cycle battery for the inverter (installed close to the inverter), cabled to the starting battery. It is recommended to install a battery isolator between the batteries.

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ZONHAN New Energy Company Limited

Address: South of the city streets, Nanan village, Leqing town, Wenzhou, Zhejiang, China (325000)

Tel:  (86 577) 62529820

Fax:  (86 577) 62529820

Homepage Address: http://www.globalsources.com/zonhan.co

Other Homepage Address: www.zonhan.com

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Supplier and product information updated September 21, 2017.

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MS Huang, Nancy

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