Dorado 48V 20Ah 21700 15.5″ Battery


The longest range battery for any 440L Reention Dorado battery system.

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1-Year Warranty

Please Contact Us for Compatibility

In stock (can be backordered)

SKU: 48V20AH15 Categories: ,


Please CONTACT US for availability and pricing. There is free shipping on these batteries. This battery is larger diameter at the top but has the same exact mounting as its lower Ah counterparts for the Reention Dorado 440L mount. Compatible with many brands like Surface604, iGo, Rad Power, Pace. Gio, Biktrix, e-Joe, Volt Bike, Samson, Juiced, Rize, NCM Moscow, Smartmotion, FLX, and many more. There should be no need to change anything with your current mounting system if you do have a compatible bike.


Note that there are 2 different lengths of Dorado cases. This version of the battery is 15.5″ tip to tail (called the 440L) where as the larger version is 18″ tip to tail (called the 505L). The 505L mounting system is not compatible as it is too long. The ID-21700 version also sits 5mm taller than the original dorado batteries (Plus/Max) so please check clearance of your bike’s top tube before buying. If you have viewed the images below and are still unsure of if this battery is compatible with your E-bike, please CONTACT US as we are happy to help! If you do have the 18″ version please see Reention Dorado 48V 20Ah MAX BatteryReention Dorado 48V 25Ah 21700 Battery.

Length & Height For Reention Dorado 48V 20Ah 21700 440L

Dorado Ebike Battery

Length For Reention Dorado 48V 20Ah 21700 440L

Dorado Ebike Battery

Specs of the Reention Dorado 48V 20Ah 21700 440L

Battery Type
Reention Dorado 48V 20Ah 21700 440L
Cells Type
LG M50T 5000mAh 21700
Cells Combination
13S4P 52PCS 21700 cells
Nominal Voltage
Nominal Capacity
Max Charing Voltage
Output Voltage Range
Discharge Cut-off Voltage
Max Continuous Discharge Current
Motor Power
1000W max
Standard Charing Current
Max Charing Current
394mm x 84mm x 109mm – 15.5″ x 3.3″ x 4.3″
11 lbs/5KG
Charing Port
Battery Size
L440 (15.5″ tip to tail)
USB Port
Charing Temperature
Discharging Temperature
Storage Temperature
Optional 3A Charger Available
BMS Functions
Protections from over charging ,over discharging, short circuit

Returns: There will be a 20% restocking fee on any returns unrelated to warranty. Returns are accepted up to 15 days after arrival. Please CONTACT US  about compatibility before you buy if you are unsure.