EV TRACTION BATTERY CHARGER COMPARISON

All information is a snapshot taken in September 2009 and is subject to change without being updated here. Issues highlighted in yellow or red. Sorted from left to right by popularity on EV Discussion List Photo Album per www.evalbum.com/chrgr. Updated 9/11/09.

Parameter Comment Chargers:                      
Make   Zivan Manzanita Micro Quick Charge Lester Soneil Russco Schumacher Delta-Q Brusa Kelly Elcon/Netgain
Number of users on EVDL   355 153 89 86 72 69 37 34 26 4 0
Nominal DC Output Voltage   12 to 96 for NG1
12 to 312 for NG3
24 to 312 for NG5
12 to 450 12 to 144 12 to 48 (96 historically) 12 to 72 72 to 156 12 to 72 24 to 96 0 to 520V for NGL503
0 to 720V for NLG51X
24 to 144 24 to 144
Isolated Isolation provides single fault tolerance against electric shock. yes no ? yes yes no ? yes yes ? yes
Verified Input Surge Protection Insures unit will not be damaged or catch fire in the event of a power line voltage or current transient such as a nearby lightning strike; covered by UL or CE. yes, CE ? ? yes, UL yes, UL and CE ? ? yes, UL and CE yes, CE applying for CE yes, CE
Output Overcurrent Protection Supplies maximum continuous current or current foldback in the event of excessive current draw including a short circuit. yes yes yes ? yes yes ? yes yes yes yes
Temperature compensation Reduces regulated voltage in higher temperatures to protect the batteries from thermal runaway. yes, via temperature probes yes, via Manzanita Micro BMS with RegBus interface yes, via internal ambient temperature probe ? ? ? ? yes, via negative terminal ring yes, via temperature probes or BMS via CANBus ? ?
Overtemperature protection Cuts back output current in the event of excess temperature detected in the power stage to protect the charger. yes yes ? ? ? yes ? yes yes yes yes
Electro-Magnetic Interference regulatory compliance Will not interfere with wireles equipment such as radios and cell phones; covered by FCC or CE. yes, CE ? ? ? yes, CE ? ? yes, FCC and CE yes, CE applying for CE yes, CE
Models   NG1
NG3
NG5
PFC20
PFC30
PFC40
PFC50
PFC75
SCO (117VAC)
SCOXU (230VAC)
Lestronic II Low Power (on-board) SC 18
SC 30
SE 1072
plus many 12V models
QuiQ NLG503
NLG51x
HWC1B
HWC4
HWC4B
PFC-1500
PFC-2000
PFC-3000
PFC-4000
PFC-5000
Stackable Multiple chargers in parallel can provide faster charging, but need to be designed to do so. ? ? ? ? ? ? ? ? yes ? ?
Maximum DC Output Power, Watts   4,350 for NG5 15,000 for PFC-75 1,440 for SCO14410 2,160 for 13570 192 for 2416SRF (but up to 24V only) 3,000 for SC 30 720 1,000 9,900 for 3 NLG51x in parallel 2,160 for 144V 15A HWC4 5,000 for PFC-5000
Price   $567 for NG1
$1,071 for NG3
$1,527 for NG5
from Electro Automotive
$2,050 for PFC20
$2,650 for PFC30
$2,850 for PFC40
$3,300 for PFC50
$4,400 for PFC75
direct
$529 for SCO14410
from Cloud Electric
$629 for 9695 (48V 25A not listed on datasheet)
from EV Parts
$180 for 2416SRF
from Cloud Electric
$1,195 for SC 30
direct
$344
direct
CAN EV is only seller, but prices not listed $2,681 for NLG503
$3,700 for NLG51x air cooled
$6,248 for NLG51x water cooled
from Metric Mind Engineering
$760
from Cloud Electric
$555 for PFC-1500
$699 for PFC-2000
$1,099 for PFC-3000
$1,477 for PFC-4000
$1,699 for PFC-5000
from KTA Services
Cost performance, $/W   $0.35 for NG5 $0.29 for PFC75 $0.37 $0.52 $0.94 $0.40 $0.48 for SE 1072 TBD $1.12 $0.35 $0.34
AC Input Voltage 120V and 240V desired for maximum flexibility. 115 or 230 for NG1/3
230 for NG5
100 to 240 117 or 230 120 or 240 90 to 264 120 120 85 to 265 90 to 264 120 or 240 90 to 260
Power Factor Corrected More efficient, and will work in public charging stations. no yes no no no yes no yes yes no yes
Sealed More reliable long term in automotive environment if heat dissipation adequate. no no yes no no no no yes yes no yes
Cooling method   forced air forced air, or liquid for PFC40 only passive passive forced air forced air forced air passive forced air, or liquid for NLG51X only forced air passive
Use model Automotive or industrial on-board provides durability and flexibility. on-board on-board on-board off-board on-board on-board off-board on-board on-board off-board on-board
Operating temperature range, degrees C   -20 to 50 ? ? ? ? ? ? -30 to 50 -25 to 70 -10 to 40 -30 to 50
Field adjustable voltage setting Good to adjust down as batteries age. Also versatile for different battery packs or vehicles. no yes battery type only no no yes 12V increments only yes yes no through timing sensitive manual switching
Field adjustable current setting Important for >13A AC draw to not trip some circuit breakers. no yes no, but only 13A no no yes no yes yes no through timing sensitive manual switching
Monitor port Aids in verification testing, instrumentation and troubleshooting. no no no no no no no no RS232 no no
Control port Allows VMU or BMS control to better protect components and passengers. no no no no no no no no CANBus no no
Dimensions, inches (model)   11.9X6.3x3.1 for NG1
17.0x8.7x3.6 for NG3
21.7x10.7x5.2 for NG5
13x9x5.5 for PFC20/30/40
19.5x10.5x6.5 for PFC50/75
6x9x8 12.5x12.15 7.6x3.6x2.6 SC 18: 8.2x7.3x6.4
SC 30: 10.0x8.0x6.4
? 11.0x9.7x4.3 13.2x10.4x3.5 for side cooled
10.6x10.4x5.4 for top cooled
10.9x7.9x3.8 for HWC4 13.9x10.0x6.6
Weight, pounds   4.9 for NG1
12.2 for NG3
19.9 for NG5
16 for PFC20
17 for PFC30/40
42 for PFC50/75
42 57 to 99 1.8 SC 18: 13
SC 30: 20
? 11 13.7 11 21.5
Distributors:
Canadian EVs
Errington, BC yes yes           yes      
Cloud Electric Clarkesville, GA yes yes yes   yes yes       yes yes
Electro Automotive Felton, CA yes                   yes
EV Parts Sequim, WA   yes   yes yes yes          
EVs of America Wolfeboro, NH yes   yes               yes
EV Source Logan, UT yes                   yes
KTA Services Ramona, CA yes yes                 yes
Metric Mind Happy Valley, OR                 yes    
Thunderstruck Motors Sebastopol, CA yes       yes            

Note: Total chargers listed on EVDL is 1408. Top 10 make up 1005 or 71% of total. 9 of the top 10 are shown above. K&W are also popular chargers with 84 users, but they are no longer available so they are not included above.

Manufacturers known to have chargers but do not serve individuals and hence were not included above include AC Propulsion, Enova, UQM, TM4 and Reliance.

If you have any corrections, questions, updates or additions to the information on this page, please contact the NBEAA per information posted on www.nbeaa.org.