“Travel the World, Without Consuming the Earth”
What can you do with Scotty?
Scotty (3000W)
Scotty 1500W
Vehicles with Scotty Installed?
Landcruiser 79 : Single and Dual Cab
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Landcruiser 200 Landcruiser 300
Toyota Hilux (with upgraded 200A Alternator)
Nissan Patrol Y 62
Isuzu DMAX
VW Transporter
VW Crafter VW Amarok
Mercedes Benz Sprinter 4cyl and 6 cyl
Fiat Ducato
Renault
Iveco Daily 12V and 24V models
Isuzu NPS 300
24V 24V 24V
Unimog
MAN 13 290
Ford F Trucks: 150, 250, 350
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Chevrolet: All models up to Denali
Dodge RAM: 1500 and 2500
Marine Vessels with Scotty Installed
Centre Console Fishing: 6 makes
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Riviera 51
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Sunseeker Predator 80 Lagoon 420, 450,460
24V
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Leopard 44, 52
Grainger 48
Catamaran Custom 60, 80 ft Superyacht Steek Hull 120ft High Speed Cats in Asia : 4
24V 24V
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Horizon 80ft
24V
Over 200 Scotty’s installed at June 2022
Safiery Pty Ltd ABN: 87 624 588 807 30/75 Waterway Drive, Coomera QLD 4209 (07) 210 22 55 3 safiery.com sales@safiery.com
“Travel the World, Without Consuming the Earth”
Charging from an Alternator Extract Power from a 12V Alternator to charge 24V, 36V to 48V Lithium using the alternators internal regulator Extract Power from a 24V Alternator to charge 36V to 48V Lithium using the alternators internal regulator Impossible to have a “load dump” with internal regulator alternator: If the Lithium battery being charged closes a “no charge relay”, the contained energy in Scotty reverses direction to the low side starter battery. Impossible to damage alternator from excessive load: Temperature sensor located on alternator triggers power reduction AND voltage sense at Scotty reduces power instantly the alternator voltage drops below set threshold. Allows the starter battery to still charge to lead acid bulk level and so avoid damage. Happens immediately after engine start. Multihull application with twin engine alternators to one house battery source can have twin Scotty’s on CANbus between them to prevent surging of loads from one engine to the other. Extract Power from 48V Alternator by external regulation to charge a 48V house bank up to 7,500W and at the same time extract power up to 3000W or deliver power to 12V starter battery and 12V loads up to 3000W Extract Power from 48V Alternator by external regulation to charge a 48V house bank up to 7,500W and at the same time extract power up to 3000W or deliver power to 24V starter battery and 24V loads up to 3000W Pair with Safiery CANbus Trigger on nearly all popular 4WD’s, Sprinter, Crafter, Transit, Iveco to set the vehicle condition of RPM/speed that activates alternator power extraction. Below this trigger, Scotty delivers power from the Lithium house battery (and solar is fitted) to the starter battery enhancing fuel economy. Euro 6.2 compliance is achieved with energy management feature described above. This allows the starter battery to be used as an energy source when starting/idling or using “stop start”. We don’t know of any other device that supports this compliance as well as Scotty. Manufacturers like Mercedes Benz may recommend limits for DC to DC power on the primary alternator. This is done for primarily two reasons: 1) A large DC to DC with a constant load at idle may overload the alternator and 2) A large DC to DC with a constant load at idle would defeat Euro 6 standards. With Scotty and energy management feature, both situations are avoided and DC to DC only comes on at nominated RPM. Separately, the sensitive alternator voltage measurement and
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Safiery Pty Ltd ABN: 87 624 588 807 30/75 Waterway Drive, Coomera QLD 4209 (07) 210 22 55 3 safiery.com sales@safiery.com
“Travel the World, Without Consuming the Earth”
temperature measurement ensures the alternator is not pulled down below capacity. Bi-Directional DC to DC When engine is off: Scotty reverses direction when the voltage threshold is met in 1/400 of a second. This maintains a minimum voltage at the starter battery and associated loads. Power transfer 3000W or 1500W. In particular, supports high current requirements of winches or windlasses of all types at the starter battery. Allows Victron Multiplus II 12V 3000VA to operate on 12V side pulling power through Scotty from the Lithium battery side. Popular with 24V and 36V trolling motor applications. Scotty responds faster than the Victron Multiplus to load changes so the Inverter will not trip. (note special Safiery programming of Inverter/Charger required) Smart Battery Protect is built into Scotty for Lithium power flow to starter battery with voltage set point that automatically turns off this function. Independent Smart Battery Protect is used on starter battery to 12V loads that automatically turns off power flow to protect starter battery. Uses small “voltage sense” positive and negative wires to Lithium battery to detect voltage condition to 3 decimal places. This allows for fast detection of loads for fast response. Charges Lithium Battery till voltage threshold met, then relaxes to a constant voltage “float voltage”. While in constant voltage “float voltage”, a sudden increase in load will trigger “power matching” to deliver required power to load but still maintain a “float voltage” condition. For batteries with an external BMS relay fitted, activation (or inverse) condition will immediately push Scotty to “float voltage” which will be less than the BMS cut off voltage and effectively stop charging immediately. Lithium Battery temperature reading feature allows for “stop charge” in a defined temperature range.
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Lithium Battery Charging – NON CANbus Communication
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Safiery Pty Ltd ABN: 87 624 588 807 30/75 Waterway Drive, Coomera QLD 4209 (07) 210 22 55 3 safiery.com sales@safiery.com
“Travel the World, Without Consuming the Earth”
Lithium Battery Charging – with CANbus Communication
250baud CANbus with variety of protocols listed below
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SAFIERY 48V 100Ah CANbus
MG Energy
Lithium Werks
Victron Lynx BMS
REC BMS
Orion Jr BMS
SIMP BMS
In most of the above BMS, where a Charge Current Limit and Charge Voltage Limit is communicated, these values over-ride any programming values in Scotty.
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Battery temperature is read from CANbus
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Safiery Pty Ltd ABN: 87 624 588 807 30/75 Waterway Drive, Coomera QLD 4209 (07) 210 22 55 3 safiery.com sales@safiery.com
“Travel the World, Without Consuming the Earth”
System Integration Victron: Appears as recognized device on VE.CAN network Venus 2.9. Scheduled to appear in device list in future release of Victron Venus OS Energy Management Alternator Power extraction delayed until optimum engine RPM. Maximum Power Examples Powercat with 800hp MTU’s: 4 x 5kW 48V Alternators with pair diametrically opposed on engine. 4 Scotty’s with up to 20kW charging to 48V house bank. 3 Scotty’s DC DC 9000W to 24V side and 1 Scotty’s DC DC 3000W to 12V side. Sprinter Food Van with 1 x 48V 150A Alternator on second Sandon mount charging up to 7,000W , with up to 3000W from factory 12V alternator for total of 10,000W peak charging. When engine off up to 3000W to 12V side. Compact Power Examples 4WD with 4,840Wh 48V Lithium, 3000VA Inverter Charger, NO 12V house battery but up to 1500W of house loads, standard factory alternator in most cases. Total weight: 65kgs Motorhome with weight limit on slideout of 100kgs. 9,600Wh 48V Lithium, 6000VA Inverter Charger, NO 12V house battery but up to 3000W of house loads, standard factory alternator in most cases. 1500W of Copperflex Solar Total weight: 95kgs Centre Console Fishing boat: 36V 125Ah of Lithium NO 12V house battery but up to 1500W of house loads, standard outboard alternator. 1600W Inverter/Charger Total weight: 65kgs Lifestyle Pack for LC200/ LC300: 30L Engel drawer, 2000W Double Induction, table, large drawer, 4,840Wh 48V Lithium, 3000VA Inverter Charger, NO 12V house battery but up to 1500W of house loads, standard factory Toyota alternator. Total weight: 100kgs What Scotty can’t do/use Starter battery must be lead/acid/AGM and cannot be lithium Can’t operate without 12V or 24V battery on starter/load side
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Pro’s and Con’s of using external or internal alternator regulator
Scotty with external regulator mode produces more power Scotty with external regulator mode matches alternator voltage and lithium voltage as same. Scotty with internal alternator regulator does not experience load dumps. Scotty with internal alternator regulator can have dead short on 48v side (towing example) with no spark nor fuss as contained energy collapses onto starter battery. Drop a spanner for a dead short and it just digitally turns off and back on. Scotty with internal alternator regulator is Automotive Grade and as such more reliable and robust.
Safiery Pty Ltd ABN: 87 624 588 807 30/75 Waterway Drive, Coomera QLD 4209 (07) 210 22 55 3 safiery.com sales@safiery.com
“Travel the World, Without Consuming the Earth”
Compact Power Pack for Unimog – Scotty under passenger seat – 6000VA All 3 voltages present 12V for bed lifter& LEDs, 24V fridge & loads, 48V for energy storage
Over 200 Scotty’s installed in many countries. Over 300 videos on Youtube
Safiery Pty Ltd ABN: 87 624 588 807 30/75 Waterway Drive, Coomera QLD 4209 (07) 210 22 55 3 safiery.com sales@safiery.com
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