39 Battery Desulphator

39 Battery Desulphator

Solar Converters model BD-2 Version 2

Battery Desulphator / Desulfator.

Sulphite crystals form when the battery charge is reduced and/or

the charge/discharge cycles are not suited to the battery(s).

The sulphite crystals act as insulators to the flow of electricity into

the battery.

They reduce the electrolyte absorption / disorption in the battery

plates which reduce the battery capacity.

This desulfator uses a sharp pulse of current forced into the battery to

suddenly jar the sulphite crystals and cause internal resonances - both

mechanical and electrical.

This breaks away the crystals so they may dissolve into the electrolyte.

Battery life is also extended.

The magnitude of pulses are precisely controlled and are adjustable

by the user.

They can be customized to your battery(s).

It also allows you to reduce any interference caused by the desulphator.

The current Version 2 has a higher pulse voltage than the original BD-2.

This means that the pulses can get through battery banks with a high impedance

(resistance) and larger number of connections and cables.

Features:

> A single unit handles 12 to 48 volt systems (maximum input of 63 volt d.c.)

> The pulse strength is adjustable from 0.0 amps to 10 amps

> An LED indicates unit operation

> An LED indicates the relative strength of the battery(s)

> Adjustable on / off voltage which can be adjusted to operate only when

the battery is near full.

> Low amp draw

> The on/off control can be adjusted with a voltmeter and a small screwdriver

> Self consumption is less than 0.05 mA from battery at full pulse

> Efficiency is greater than 96% over 20% pulse load.

> Dimensions: 3" by 2" by 1.5"

> Operating temperature is from - 40 to + 60 deg. C

> Simple to wire

To see the Battery Desulphator owner's manual please click onto the

following link: BD - 2 manual

To see the Basic Operation guide on this page please click onto the

following link: BD-2 Basic Operation

To see the BD-2 wiring layouts on this page please click onto the

following link: Wiring Layouts

Please note the following:

The BD-2V2 is pre-set at the factory to come on when the battery

voltage reaches about 13.5 volts (for a 12 volt system) during

charging.

You can set it for the charging voltage of a 24, 36 or 48 volt battery

system.

The BD-2V2 will not come on until the charging voltage comes up

to the set point on the unit.

The BD-2V2 is designed to send out pulses to your battery (s) only

when the system is being charged.

solar converters battery desulphator desulfator bd-2 v2

Currently we have 4 in stock.

10PRICE: ( BD - 2-V2 ) $ 90.00 each

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Basic Operation

Sulphite crystals from when the battery charge is reduced and/or the

discharge/discharge cycles are not well suited for the battery.

These sulphite crystals act as insulators to the flow of electricity in the battery,

seriously degrading the capability of the battery to have electricity flow in it,

reducing its charging and discharge capability.

This unit uses a sharp pulse of current forced into the battery suddenly to "jar"

the sulphite crystals and cause internal resonance, both mechanical and electrical,

to grind down the sulphite crystals that form so they be re-combined into the

battery acid.

For increased performance, this unit precisely controls the magnitude of the

sharp pulse of current, which is adjustable by the user.

This adjustment is important as no 2 batteries are the same and no 2 battery

set-ups are the same.

As well, battery desulphator, as they work with current spikes, may interfere

with equipment connected to the unit.

This adjustment allows the user to tailor the both the current spike and at what

voltage it is present.

Battery Connection

This unit requires an external 0.5 amp fuse in line fuse.

Using wire of sufficient gauge (#16 AWG or better), connect the red wire to the

battery positive and the black wire to battery negative.

User Adjustments

This unit has 2 adjustments, one for pulse strength, and one for turn on voltage.

dwg# i-8061

Turn on Voltage

Use a meter inserted into the 2 test points. Determine the voltage that you wish

to operate the unit at.

This is usually 95 % of the battery float voltage.

The unit has a 1/20th scale factor so divide the voltage you wish to operate at

or above by 20.

This voltage (1/20th scale) is the setting of the V-on pot.

Adjust the set pot to set the desired voltage calculated above.

The unit will now operate only when the voltage is above this set voltage.

For example, a 12 V battery floats at 14 V.

Thus the unit should operate at above 13.5 V (14 * .955).

Using the TP and GND setpoints and a digital multi-meter, adjust the V-On

voltage set voltage using a small screwdriver to 0.65 V (13.5 /20 = 0.65 V).

It is factory set to 0.65 V for 12 V batteries.

Pulse Strength

The Pot marked strength controls the magnitude of the current pulse.

Its usual setting is in the middle for a 5-amp pulse.

By moving the Pot to 0, the unit puts out 0 amp pulses (essentially off).

By moving the POT full to 10, the unit puts out 10 amp pulses.

For more detail, please see drawing on page 3.

Note: If other equipment is connected to the same battery, it may be affected

in operation.

This adjustment may be used to reduce interference while still having the

benefits of the desulphation action.

Application Notes

Some charging sources are better than others and batteries may be of

different health to begin with.

1) New batteries or batteries that will still hold over 25 % charge.

No special care is required of the setup.

The battery is sufficiently strong to tame the output voltage variations of almost

any charger independent of its quality that would reasonably be used with a

battery of that size.

Attaching the desulphators will clean and prevent sulphation of these batteries

as they go through their usual charge/ discharge cycles.

2) Badly Sulphated Battery

If the battery is very sulphated i.e. it cannot hold much of a charge itself, extra care to recover the battery must be taken.

Typical lower quality charging sources like hardware store car battery chargers or

standard PWM controllers will over voltage the battery as the battery does not have

the capacity to “tame” the higher voltage pulses these units put out.

With no or very little battery attached, other failures modes may occur while it is

being desulphated.

In this case, make a coil of wire by wrapping 10 turns of the wire around your hand

and use this coiled wire to connect the dead battery to a good battery that has a

charge controller attached to it.

Connect the desulphator to the bad battery.

The wire coil forms an inductor which will block the pulses from going into the

good battery so it goes into the poor battery,

and the good battery with its charger will keep the bad battery from being over

voltage or damaged by the voltage wide variations of a lower quality charger source.

If the charger has a clean DC output (very little ripple) regulated to the float charge

voltage like a DC power supply or one of Solar Converters Inc. MPPT charge

controllers, the desulphators and battery can be directly connected without the

need for an additional battery to tame the charger.

Wiring Layouts

If you would like to print this wiring layout I would suggest that you

put your cursor in the center and print it as a picture.

You will get the best results printing it this way.

solar converters bd-2 version 2 battery desulphator / desulfator

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