In this technology upgrade, we used full back welding for the first time. This method can effectively improve the crack resistance of the battery core, make the battery more stable during use, and reduce the failure rate caused by internal structural problems of the battery. Full back welding can not only improve the durability of the battery, but also improve the safety of the battery, allowing users to feel more at ease during use. Full back welding is an advanced welding technology that achieves internal connection and sealing of the battery core by welding the electrode sheet to the back of the battery case. This welding method can ensure that the circuit inside the battery core is unobstructed and avoids problems such as poor contact and short circuit that may be caused by traditional welding methods. At the same time, full back welding can also enhance the structural strength of the battery core and improve the overall stability and reliability of the battery. Batteries using full back welding technology also have significant advantages in terms of service life. Since full back welding can effectively prevent damage and deformation of the internal structure of the battery, the battery can maintain high performance during long-term use and reduce the risk of failure caused by battery aging. In addition, full back welding also helps reduce gas leakage inside the battery and improves the safety performance of the battery. For users, batteries using full back welding technology not only have better performance, but are also more secure. Users do not need to worry about accidents caused by internal structural problems when using batteries, and can use and maintain battery equipment with confidence. This is particularly important today when the reliability and safety requirements for electronic products are getting higher and higher.

Product number	LR5-54HTB-410M	LR5-54HTB-415M	LR5-54HTB-420M	LR5-54HTB-425M	LR5-54HTB-430M
quality assurance	12-year Warranty forMaterials and Processing
product quality assurance	30-year Warranty for ExtraLinear Power Output
Power Output Guaranteed	2% degradation in the first year, 0.4% annual degradation in the 2nd-30th
Electrical performance parameters (STC)
Peak Power (Pmax)	410 Wp	415 Wp	420 Wp	425 Wp	430 Wp
Peak operating voltage (Vmpp)	32.36 V	32.56 V	32.76 V	32.96 V	33.16 V
Peak operating current (Impp)	12.67 A	12.75 A	12.83 A	12.9 A	12.97 A
Open circuit voltage (Voc)	38.63 V	38.83 V	39.03 V	39.23 V	39.43 V
Short circuit current (Isc)	13.7 A	13.78 A	13.85 A	13.93 A	14 A
Component efficiency	21%	21.30%	21.50%	21.80%	22%
Power deviation (positive)	3%	3%	3%	3%	3%
Electrical performance parameters (NOCT)
Peak Power (Pmax)	306 Wp	310 Wp	314 Wp	318 Wp	321 Wp
Peak operating voltage (Vmpp)	29.53 V	29.71 V	29.89 V	30.08 V	30.26 V
Peak operating current (Impp)	10.37 A	10.44 A	10.5 A	10.56 A	10.62 A
Open circuit voltage (Voc)	36.27 V	36.46 V	36.65 V	36.83 V	37.02 V
Short circuit current (Isc)	11.07 A	11.13 A	11.19 A	11.25 A	11.31 A
maximum durable temperature	45±2 °C
temperature characteristics
Operating temperature	-40~85 °C
Temperature coefficient (Pmax)	-0.29 %/°C
Temperature Coefficient (Voc)	-0.23 %/°C
Temperature Coefficient (Isc)	0.05 %/°C
System Integration Parameters
system voltage	1500 V
Fuse rated current	25 A
physical parameters
Component size (height/width/thickness)	1722x1134x30 mm
weight	20.8 kg
Cell type	interdigitated back contact
Cell Quantity	108
glass type	Tempering
glass thickness	3.2 mm
border type	Anodized aluminum alloy
Number of Bypass Diodes	3
Junction box protection class	IP 68
Cable cross section	4 mm²
cable length	1200 mm