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18650 4S 12V 15A 20A 30A 40A 50A 60A Waterproof BMS For Rechargeable Lifepo4 Battery With
Same Port for lithium battery
BMS, short for BATTERY MANAGEMENT SYSTEM, is the link between the BATTERY and the user. Its main object is a secondary battery, mainly
to improve the battery utilization rate, to prevent excessive battery charging and excessive discharge, which can be used in electric cars, battery
cars, robots, unmanned aerial vehicles.
◆EVL4S12V 15A/20A/30A/40A/50A/60A PCB is used for 4 series 12V lifepo4 battery pack.
◆We can design it for various lithium batteries like LiFepo4, LiMn2O4, lipo and Li-polymer etc.
◆The main functions are: over charge protection, over discharge protection, over current protection, short-circuit protection, temperature protection
etc.
◆According to the customer request we can develop PCM in different sizes and structures.
◆BMS manufactured by high quality Mos and IC imported . Keep your battery long cycle serivce life time.
Parameters for li-ion 4S 12V BMS | |||||||
Description | Specification | Unite | Remarks | ||||
20A | 30A | 40A | 60A | ||||
Discharge | continue discharge current | 20 | 30 | 40 | 60 | A | |
Discharge Peak current | 65 | 165 | 165 | 200 | A | ||
Over current protection | 65 | 165 | 165 | 200 | A | ||
Charge | Charge voltage | 17 | V | ||||
Charge current | 20 | 30 | 40 | 60 | A | Charge current 8A in Separate port | |
Over charge protection | Over charge detect voltage | 4.25±0.025 | V | ||||
Over charge protection delay | 0.5 | S | |||||
Over charge release voltage | 4.15±0.05 | V | |||||
Balance | Balance detection voltage | 4.18 | V | ||||
Balance release voltage | 4.18 | V | |||||
Balance current | 30 | mA | Balance current30±5mA | ||||
Discharge protection | Over discharge detect voltage | 2.7±0.05 | V | ||||
Over discharge detect delay | 0.5 | S | |||||
Over discharge release voltage | 3.0±0.05 | V | |||||
Over current protection | Over current detect voltage | 150 | mV | ||||
Over current detect delay | 9 | MS | |||||
Over current protection release conditions | Off load | ||||||
Short circuit protection | Short circuit protection conditions | short circuit with extermal load | |||||
Short circuit detection delay | 250 | uS | |||||
Short circuit protection release conditions | Off load | ||||||
Temp Protection | Temp Protection | NA | ℃ | As Requirement | |||
Inner resistance | Main circuit conductive inner resistance | ≤10 | mΩ | ||||
Self electricity consume | Working current | ≤40 | uA | ||||
Sleeping current（Battery in overdischarge） | ≤20 | uA | |||||
Working Temp | Temp range | -30to80 | ℃ | ||||