Detailed description:
Rated voltage:4V
Nominal capacity 4V 4AH<lead acid battery>
Dimension:46* 46 * 100* length * width * height (MM)
The weight: 0.8 kg
Charging method:constant current
Applicable fields:
Mainly for the LED flashlight, desk lamp, lighting, etc
Biggest features:
* Sealed construction, safety and no leakage
* Maintenance-free, convenient for installation
* Broad operating temperature range
* High capabiltity, high energy density
* Low self-discharge rate, more deep cycle times
* Long service life, Excellent recharge and discharge performance
Kindly notice to Buyer:
1, the so-called maintenance-free lead-acid batteries, not from the regular maintenance of battery for a long time, in fact only from added water work, after a long time to place still need to supplement the electrical maintenance.
2, when charging, it is best to one-off uninterrupted enough, if not enough, will influence the battery capacity and service life.
3, battery if long time not to use, to a full charge (once every three months to charge) placed together, otherwise lost electricity damage batteries battery necrosis.