Cold Climate Electric Vehicle Battery 48V 20Ah LTO 60A Pulse 57V Max Charge

Cold Climate Electric Vehicle Battery 48V 20Ah LTO 60A Pulse 57V Max Charge

Engineered for Subzero Riding
Most electric bike batteries lose power or refuse to charge when temperatures drop below freezing. The ECOLTO-T4820 solves this problem with lithium titanate chemistry. It charges and discharges at -40°C without any external heating. Developed for the extreme cold of northwest China, this battery keeps your e bike running through winter months when standard LiFePO4 packs fail.

Core Technical Data
Nominal voltage 48V. Rated capacity 19.5Ah (nominally 20Ah). Total stored energy 936Wh. Internal resistance ≤65mΩ. Efficiency 99 percent. Self discharge only 2 percent per month. Configuration 20 series and 13 parallel (20S13P). Dimensions 185 by 145 by 310mm. Weight 15kg. Terminal uses a 2+6 plug. Housing is cold rolled steel sheet rated IP65 against dust and water jets. Cell chemistry LTO. Optional SOC display supports 4G and RS485.

Power Delivery
Continuous discharge current 20A is enough for flat terrain and moderate hills. Pulse discharge reaches 60A for up to 10 seconds to climb steep slopes or accelerate quickly. The BMS cuts off discharge at 30V and reconnects at 40V. Short circuit protection triggers in 200 to 500 microseconds.

Charging Made Simple
Use CC CV method with voltage between 55V and 57V. Recommended float voltage is 55V. Standard charging at 10A fills the battery in about 2 hours. Maximum charging current is 20A which reduces charge time to roughly 1 hour. BMS stops charging at 57V. Unlike other lithium batteries, LTO accepts high current even at -40°C.

Unmatched Cycle Life
You can expect over 10000 cycles at 1C charge and discharge with 80% depth of discharge while retaining more than 80% of original capacity. Daily riders get over 27 years of service. This eliminates frequent battery replacements and lowers total ownership cost significantly.

No Temperature Worries
Discharge from -40°C to 60°C. Charge from -40°C to 60°C. Store between 10°C and 35°C. BMS high temperature cutoff at 65°C. Whether you live in the far north or the hot south, this battery works every day of the year without performance loss.